UES Legionnaires' Outbreak: 90 Cases and 5 Deaths As Cooling Tower Testing Nears Completion
Upper East Side - 10028, 10128 & 10075, Upper East Side, Manhattan
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Summary
- The NYC Health Department is investigating a Legionnaires' disease cluster in the Carnegie Hill, Yorkville, and Lenox Hill neighborhoods on the Upper East Side. The affected area covers zip codes 10028, 10128, and 10075.
- As of July 28, 90 total cases have been confirmed and five people have died.
- Residents who have spent time in these zip codes and develop flu-like symptoms — including fever, cough, or difficulty breathing — should seek medical attention immediately. Symptoms can appear up to 14 days after exposure.
- Tap to for the latest information from the NYC Department of Health.
- Tap to view a full list of buildings with positive initial Legionella PCR test results.
Timeline
95 cooling towers have now tested culture negative after cleaning and remediation efforts.
As of July 28, the NYC Health Department has confirmed 90 total cases — 7 are currently hospitalized, 65 have been discharged, and 13 did not require hospitalization. No new deaths have been reported.
Of the 183 cooling towers tested at 160 buildings, 57 cooling towers at 56 buildings have tested culture positive — confirming the presence of live Legionella bacteria at the time of sampling. All have been cleaned and disinfected. 79 cooling towers have now tested culture negative.
As of July 27, the NYC Health Department has confirmed 89 total cases — 7 are currently hospitalized, 64 have been discharged, and 13 did not require hospitalization. No new deaths have been reported.
Of the 183 cooling towers tested at 160 buildings, 51 cooling towers at 50 buildings have now tested culture positive — confirming the presence of live Legionella bacteria at the time of sampling. All have been cleaned and disinfected. 19 cooling towers have tested culture negative. All other results are still pending.
As of July 23, the NYC Health Department has confirmed 84 total cases — 7 are currently hospitalized, 59 have been discharged, and 13 did not require hospitalization. Five people have died in connection with the cluster.
More conclusive culture tests — which confirm the presence of live Legionella bacteria — found 34 cooling towers at 33 buildings tested positive. All have been cleaned and disinfected.
Of the 183 cooling towers tested at 160 buildings, 77 towers at 75 buildings tested positive for Legionella bacteria in initial PCR screening.
As of July 22, the NYC Health Department has confirmed 82 total cases — 8 are currently hospitalized, 56 have been discharged, and 13 did not require hospitalization. Five people have now died in connection with the cluster.
The family of one victim — an 88-year-old Air Force veteran who had been married for 50 years — is planning to sue the owner of the cooling tower linked to the outbreak once the source is officially identified, per ABC7 New York.
"We believe we have now eliminated the source of exposure. Regardless, we will continue to inspect cooling towers and aggressively enforce health laws," Mayor Zohran Mamdani said.
No new cases have been diagnosed since July 15. The last person known to have developed symptoms did so more than a week ago. Health officials say these trends suggest the source of exposure has likely been eliminated.
A fourth person has died in connection with the UES Legionnaires' cluster, Health Commissioner Dr. Alister Martin confirmed Monday. Deaths were reported on four consecutive days — Friday through Monday.
The NYC Health Department said it believes the source of the bacteria has likely been eliminated. Officials will continue inspecting every cooling tower that tested positive for Legionella bacteria.
"It is with great sadness that I report a third person has died in connection with the Legionnaires' disease community cluster on the Upper East Side," NYC Health Commissioner Dr. Alister F. Martin said.
As of July 19, the NYC Health Department has confirmed 74 total cases and 3 deaths. Eight people remain hospitalized and 51 have been discharged.
As of July 16, the NYC Health Department has confirmed 67 total cases — 12 are currently hospitalized, 43 have been discharged, and 12 did not require hospitalization. No deaths have been reported.
As of July 15, the NYC Health Department has confirmed 64 total cases.
57 buildings have completed required remediation. The remaining 19 — including the Metropolitan Museum of Art at 1000 Fifth Ave — have been ordered to complete remediation by Thursday, July 16.
As of July 14, 76 buildings on the Upper East Side have tested positive for Legionella bacteria in preliminary PCR testing — more than double the 31 previously reported, per ABC7 New York. Of the 183 cooling towers sampled in the area, no tests are outstanding.
A more conclusive culture test is also being conducted on all sampled cooling towers. Culture tests take up to two weeks for results and will confirm which towers had live Legionella bacteria growing at the time the water sample was collected.
The NYC Health Department is conducting PCR tests on cooling towers in the affected area. PCR tests identify traces of living or dead Legionella bacteria. Owners of towers with positive initial results must immediately drain, clean, and disinfect their cooling towers. Officials note that a positive PCR test does not confirm a cooling tower is connected to the outbreak.
As of July 14, the NYC Health Department has confirmed 63 total cases — 12 are currently hospitalized, 40 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 13, the NYC Health Department has confirmed 60 total cases — 15 are currently hospitalized, 34 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 12th, the NYC Department of Health has confirmed 59 total cases — 15 are currently hospitalized, 33 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 9, the NYC Health Department has confirmed 46 cases and 22 hospitalizations in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side. No deaths have been reported.
People at increased risk include those age 50 or older, smokers, people with chronic lung disease, and those with weakened immune systems. If you have visited the area since late June and develop fever, cough, or difficulty breathing, contact a healthcare provider immediately.
The active testing zone stretches from East 74th Street to East 97th Street. Zip codes 10028, 10128, and 10075 remain the affected area.
The Mamdani administration pledged to release the addresses of buildings with positive initial Legionella tests. It is not yet clear when that information will be released.
Over 160 water towers in the affected area are being investigated as the likely source. Remediation efforts have already begun on some towers. The specific source of the bacteria has not yet been identified.
As of July 8, the NYC Health Department has confirmed 36 cases and 22 hospitalizations in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side. No deaths have been reported.
Please view the attached informational flyer provided by the NYC Department of Health.
Additionally, 21 of those individuals have been hospitalized. No deaths have been reported as of July 7th.
According to an update from the NYC Health Department, 28 cases of Legionnaires have been confirmed as of July 7th.
The NYC Department of Health is hosting a town hall meeting regarding the Legionnaires' disease cluster tonight, Tuesday, July 7, at 6 p.m. at the Church of St. Ignatius Loyola — Wallace Hall, 980 Park Ave., New York, NY 10028. Residents with concerns are encouraged to attend.
The NYC Health Department believes the likely source of the bacteria is a cooling tower in the area, which sprays a mist containing Legionella bacteria. All cooling towers in the area are being sampled and tested at the NYC Public Health Lab. Results take several weeks to process.
Seventeen people have been hospitalized. However, no deaths have been associated with the cluster.
As of July 6, the cluster has grown to 23 confirmed cases in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side.
The address reported for this incident has changed to Upper East Side - 10028, 10128 & 10075.
The address reported for this incident has changed to Upper East Side - 10028, 10125 & 10075.
Last summer, a Legionnaires' outbreak in Central Harlem led to more than 100 confirmed illnesses.
Legionnaires' disease is not spread person-to-person. It is caused by inhaling contaminated water vapor and can be treated with antibiotics when caught early.
Mayor Mamdani confirmed the infections are not related to buildings' plumbing or air conditioning. Tap water and air conditioners are safe to use.
The source of the outbreak remains under investigation. The Health Department is testing cooling towers throughout the affected area as a possible source. No specific source has been identified.
Officials are also urging anyone who visited the east side of Central Park between East 76th Street and East 97th Street since late June to monitor for symptoms and seek medical attention if they develop fever, cough, or difficulty breathing.
The cluster started with just two confirmed cases when first announced Thursday.
The cluster covers zip codes 10028, 10128, and 10075, including Yorkville and Carnegie Hill.
The NYC Health Department has confirmed 14 Legionnaires' disease cases on the Upper East Side.
Incident reported at Upper East Side.
95 cooling towers have now tested culture negative after cleaning and remediation efforts.
As of July 28, the NYC Health Department has confirmed 90 total cases — 7 are currently hospitalized, 65 have been discharged, and 13 did not require hospitalization. No new deaths have been reported.
Of the 183 cooling towers tested at 160 buildings, 57 cooling towers at 56 buildings have tested culture positive — confirming the presence of live Legionella bacteria at the time of sampling. All have been cleaned and disinfected. 79 cooling towers have now tested culture negative.
As of July 27, the NYC Health Department has confirmed 89 total cases — 7 are currently hospitalized, 64 have been discharged, and 13 did not require hospitalization. No new deaths have been reported.
Of the 183 cooling towers tested at 160 buildings, 51 cooling towers at 50 buildings have now tested culture positive — confirming the presence of live Legionella bacteria at the time of sampling. All have been cleaned and disinfected. 19 cooling towers have tested culture negative. All other results are still pending.
As of July 23, the NYC Health Department has confirmed 84 total cases — 7 are currently hospitalized, 59 have been discharged, and 13 did not require hospitalization. Five people have died in connection with the cluster.
More conclusive culture tests — which confirm the presence of live Legionella bacteria — found 34 cooling towers at 33 buildings tested positive. All have been cleaned and disinfected.
Of the 183 cooling towers tested at 160 buildings, 77 towers at 75 buildings tested positive for Legionella bacteria in initial PCR screening.
As of July 22, the NYC Health Department has confirmed 82 total cases — 8 are currently hospitalized, 56 have been discharged, and 13 did not require hospitalization. Five people have now died in connection with the cluster.
The family of one victim — an 88-year-old Air Force veteran who had been married for 50 years — is planning to sue the owner of the cooling tower linked to the outbreak once the source is officially identified, per ABC7 New York.
"We believe we have now eliminated the source of exposure. Regardless, we will continue to inspect cooling towers and aggressively enforce health laws," Mayor Zohran Mamdani said.
No new cases have been diagnosed since July 15. The last person known to have developed symptoms did so more than a week ago. Health officials say these trends suggest the source of exposure has likely been eliminated.
A fourth person has died in connection with the UES Legionnaires' cluster, Health Commissioner Dr. Alister Martin confirmed Monday. Deaths were reported on four consecutive days — Friday through Monday.
The NYC Health Department said it believes the source of the bacteria has likely been eliminated. Officials will continue inspecting every cooling tower that tested positive for Legionella bacteria.
"It is with great sadness that I report a third person has died in connection with the Legionnaires' disease community cluster on the Upper East Side," NYC Health Commissioner Dr. Alister F. Martin said.
As of July 19, the NYC Health Department has confirmed 74 total cases and 3 deaths. Eight people remain hospitalized and 51 have been discharged.
As of July 16, the NYC Health Department has confirmed 67 total cases — 12 are currently hospitalized, 43 have been discharged, and 12 did not require hospitalization. No deaths have been reported.
As of July 15, the NYC Health Department has confirmed 64 total cases.
57 buildings have completed required remediation. The remaining 19 — including the Metropolitan Museum of Art at 1000 Fifth Ave — have been ordered to complete remediation by Thursday, July 16.
As of July 14, 76 buildings on the Upper East Side have tested positive for Legionella bacteria in preliminary PCR testing — more than double the 31 previously reported, per ABC7 New York. Of the 183 cooling towers sampled in the area, no tests are outstanding.
A more conclusive culture test is also being conducted on all sampled cooling towers. Culture tests take up to two weeks for results and will confirm which towers had live Legionella bacteria growing at the time the water sample was collected.
The NYC Health Department is conducting PCR tests on cooling towers in the affected area. PCR tests identify traces of living or dead Legionella bacteria. Owners of towers with positive initial results must immediately drain, clean, and disinfect their cooling towers. Officials note that a positive PCR test does not confirm a cooling tower is connected to the outbreak.
As of July 14, the NYC Health Department has confirmed 63 total cases — 12 are currently hospitalized, 40 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 13, the NYC Health Department has confirmed 60 total cases — 15 are currently hospitalized, 34 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 12th, the NYC Department of Health has confirmed 59 total cases — 15 are currently hospitalized, 33 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 9, the NYC Health Department has confirmed 46 cases and 22 hospitalizations in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side. No deaths have been reported.
People at increased risk include those age 50 or older, smokers, people with chronic lung disease, and those with weakened immune systems. If you have visited the area since late June and develop fever, cough, or difficulty breathing, contact a healthcare provider immediately.
The active testing zone stretches from East 74th Street to East 97th Street. Zip codes 10028, 10128, and 10075 remain the affected area.
The Mamdani administration pledged to release the addresses of buildings with positive initial Legionella tests. It is not yet clear when that information will be released.
Over 160 water towers in the affected area are being investigated as the likely source. Remediation efforts have already begun on some towers. The specific source of the bacteria has not yet been identified.
As of July 8, the NYC Health Department has confirmed 36 cases and 22 hospitalizations in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side. No deaths have been reported.
Please view the attached informational flyer provided by the NYC Department of Health.
Additionally, 21 of those individuals have been hospitalized. No deaths have been reported as of July 7th.
According to an update from the NYC Health Department, 28 cases of Legionnaires have been confirmed as of July 7th.
The NYC Department of Health is hosting a town hall meeting regarding the Legionnaires' disease cluster tonight, Tuesday, July 7, at 6 p.m. at the Church of St. Ignatius Loyola — Wallace Hall, 980 Park Ave., New York, NY 10028. Residents with concerns are encouraged to attend.
The NYC Health Department believes the likely source of the bacteria is a cooling tower in the area, which sprays a mist containing Legionella bacteria. All cooling towers in the area are being sampled and tested at the NYC Public Health Lab. Results take several weeks to process.
Seventeen people have been hospitalized. However, no deaths have been associated with the cluster.
As of July 6, the cluster has grown to 23 confirmed cases in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side.
The address reported for this incident has changed to Upper East Side - 10028, 10128 & 10075.
The address reported for this incident has changed to Upper East Side - 10028, 10125 & 10075.
Last summer, a Legionnaires' outbreak in Central Harlem led to more than 100 confirmed illnesses.
Legionnaires' disease is not spread person-to-person. It is caused by inhaling contaminated water vapor and can be treated with antibiotics when caught early.
Mayor Mamdani confirmed the infections are not related to buildings' plumbing or air conditioning. Tap water and air conditioners are safe to use.
The source of the outbreak remains under investigation. The Health Department is testing cooling towers throughout the affected area as a possible source. No specific source has been identified.
Officials are also urging anyone who visited the east side of Central Park between East 76th Street and East 97th Street since late June to monitor for symptoms and seek medical attention if they develop fever, cough, or difficulty breathing.
The cluster started with just two confirmed cases when first announced Thursday.
The cluster covers zip codes 10028, 10128, and 10075, including Yorkville and Carnegie Hill.
The NYC Health Department has confirmed 14 Legionnaires' disease cases on the Upper East Side.
Incident reported at Upper East Side.
95 cooling towers have now tested culture negative after cleaning and remediation efforts.
As of July 28, the NYC Health Department has confirmed 90 total cases — 7 are currently hospitalized, 65 have been discharged, and 13 did not require hospitalization. No new deaths have been reported.
Of the 183 cooling towers tested at 160 buildings, 57 cooling towers at 56 buildings have tested culture positive — confirming the presence of live Legionella bacteria at the time of sampling. All have been cleaned and disinfected. 79 cooling towers have now tested culture negative.
As of July 27, the NYC Health Department has confirmed 89 total cases — 7 are currently hospitalized, 64 have been discharged, and 13 did not require hospitalization. No new deaths have been reported.
Of the 183 cooling towers tested at 160 buildings, 51 cooling towers at 50 buildings have now tested culture positive — confirming the presence of live Legionella bacteria at the time of sampling. All have been cleaned and disinfected. 19 cooling towers have tested culture negative. All other results are still pending.
As of July 23, the NYC Health Department has confirmed 84 total cases — 7 are currently hospitalized, 59 have been discharged, and 13 did not require hospitalization. Five people have died in connection with the cluster.
More conclusive culture tests — which confirm the presence of live Legionella bacteria — found 34 cooling towers at 33 buildings tested positive. All have been cleaned and disinfected.
Of the 183 cooling towers tested at 160 buildings, 77 towers at 75 buildings tested positive for Legionella bacteria in initial PCR screening.
As of July 22, the NYC Health Department has confirmed 82 total cases — 8 are currently hospitalized, 56 have been discharged, and 13 did not require hospitalization. Five people have now died in connection with the cluster.
The family of one victim — an 88-year-old Air Force veteran who had been married for 50 years — is planning to sue the owner of the cooling tower linked to the outbreak once the source is officially identified, per ABC7 New York.
"We believe we have now eliminated the source of exposure. Regardless, we will continue to inspect cooling towers and aggressively enforce health laws," Mayor Zohran Mamdani said.
No new cases have been diagnosed since July 15. The last person known to have developed symptoms did so more than a week ago. Health officials say these trends suggest the source of exposure has likely been eliminated.
A fourth person has died in connection with the UES Legionnaires' cluster, Health Commissioner Dr. Alister Martin confirmed Monday. Deaths were reported on four consecutive days — Friday through Monday.
The NYC Health Department said it believes the source of the bacteria has likely been eliminated. Officials will continue inspecting every cooling tower that tested positive for Legionella bacteria.
"It is with great sadness that I report a third person has died in connection with the Legionnaires' disease community cluster on the Upper East Side," NYC Health Commissioner Dr. Alister F. Martin said.
As of July 19, the NYC Health Department has confirmed 74 total cases and 3 deaths. Eight people remain hospitalized and 51 have been discharged.
As of July 16, the NYC Health Department has confirmed 67 total cases — 12 are currently hospitalized, 43 have been discharged, and 12 did not require hospitalization. No deaths have been reported.
As of July 15, the NYC Health Department has confirmed 64 total cases.
57 buildings have completed required remediation. The remaining 19 — including the Metropolitan Museum of Art at 1000 Fifth Ave — have been ordered to complete remediation by Thursday, July 16.
As of July 14, 76 buildings on the Upper East Side have tested positive for Legionella bacteria in preliminary PCR testing — more than double the 31 previously reported, per ABC7 New York. Of the 183 cooling towers sampled in the area, no tests are outstanding.
A more conclusive culture test is also being conducted on all sampled cooling towers. Culture tests take up to two weeks for results and will confirm which towers had live Legionella bacteria growing at the time the water sample was collected.
The NYC Health Department is conducting PCR tests on cooling towers in the affected area. PCR tests identify traces of living or dead Legionella bacteria. Owners of towers with positive initial results must immediately drain, clean, and disinfect their cooling towers. Officials note that a positive PCR test does not confirm a cooling tower is connected to the outbreak.
As of July 14, the NYC Health Department has confirmed 63 total cases — 12 are currently hospitalized, 40 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 13, the NYC Health Department has confirmed 60 total cases — 15 are currently hospitalized, 34 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 12th, the NYC Department of Health has confirmed 59 total cases — 15 are currently hospitalized, 33 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 9, the NYC Health Department has confirmed 46 cases and 22 hospitalizations in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side. No deaths have been reported.
People at increased risk include those age 50 or older, smokers, people with chronic lung disease, and those with weakened immune systems. If you have visited the area since late June and develop fever, cough, or difficulty breathing, contact a healthcare provider immediately.
The active testing zone stretches from East 74th Street to East 97th Street. Zip codes 10028, 10128, and 10075 remain the affected area.
The Mamdani administration pledged to release the addresses of buildings with positive initial Legionella tests. It is not yet clear when that information will be released.
Over 160 water towers in the affected area are being investigated as the likely source. Remediation efforts have already begun on some towers. The specific source of the bacteria has not yet been identified.
As of July 8, the NYC Health Department has confirmed 36 cases and 22 hospitalizations in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side. No deaths have been reported.
Please view the attached informational flyer provided by the NYC Department of Health.
Additionally, 21 of those individuals have been hospitalized. No deaths have been reported as of July 7th.
According to an update from the NYC Health Department, 28 cases of Legionnaires have been confirmed as of July 7th.
The NYC Department of Health is hosting a town hall meeting regarding the Legionnaires' disease cluster tonight, Tuesday, July 7, at 6 p.m. at the Church of St. Ignatius Loyola — Wallace Hall, 980 Park Ave., New York, NY 10028. Residents with concerns are encouraged to attend.
The NYC Health Department believes the likely source of the bacteria is a cooling tower in the area, which sprays a mist containing Legionella bacteria. All cooling towers in the area are being sampled and tested at the NYC Public Health Lab. Results take several weeks to process.
Seventeen people have been hospitalized. However, no deaths have been associated with the cluster.
As of July 6, the cluster has grown to 23 confirmed cases in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side.
The address reported for this incident has changed to Upper East Side - 10028, 10128 & 10075.
The address reported for this incident has changed to Upper East Side - 10028, 10125 & 10075.
Last summer, a Legionnaires' outbreak in Central Harlem led to more than 100 confirmed illnesses.
Legionnaires' disease is not spread person-to-person. It is caused by inhaling contaminated water vapor and can be treated with antibiotics when caught early.
Mayor Mamdani confirmed the infections are not related to buildings' plumbing or air conditioning. Tap water and air conditioners are safe to use.
The source of the outbreak remains under investigation. The Health Department is testing cooling towers throughout the affected area as a possible source. No specific source has been identified.
Officials are also urging anyone who visited the east side of Central Park between East 76th Street and East 97th Street since late June to monitor for symptoms and seek medical attention if they develop fever, cough, or difficulty breathing.
The cluster started with just two confirmed cases when first announced Thursday.
The cluster covers zip codes 10028, 10128, and 10075, including Yorkville and Carnegie Hill.
The NYC Health Department has confirmed 14 Legionnaires' disease cases on the Upper East Side.
Incident reported at Upper East Side.
95 cooling towers have now tested culture negative after cleaning and remediation efforts.
As of July 28, the NYC Health Department has confirmed 90 total cases — 7 are currently hospitalized, 65 have been discharged, and 13 did not require hospitalization. No new deaths have been reported.
Of the 183 cooling towers tested at 160 buildings, 57 cooling towers at 56 buildings have tested culture positive — confirming the presence of live Legionella bacteria at the time of sampling. All have been cleaned and disinfected. 79 cooling towers have now tested culture negative.
As of July 27, the NYC Health Department has confirmed 89 total cases — 7 are currently hospitalized, 64 have been discharged, and 13 did not require hospitalization. No new deaths have been reported.
Of the 183 cooling towers tested at 160 buildings, 51 cooling towers at 50 buildings have now tested culture positive — confirming the presence of live Legionella bacteria at the time of sampling. All have been cleaned and disinfected. 19 cooling towers have tested culture negative. All other results are still pending.
As of July 23, the NYC Health Department has confirmed 84 total cases — 7 are currently hospitalized, 59 have been discharged, and 13 did not require hospitalization. Five people have died in connection with the cluster.
More conclusive culture tests — which confirm the presence of live Legionella bacteria — found 34 cooling towers at 33 buildings tested positive. All have been cleaned and disinfected.
Of the 183 cooling towers tested at 160 buildings, 77 towers at 75 buildings tested positive for Legionella bacteria in initial PCR screening.
As of July 22, the NYC Health Department has confirmed 82 total cases — 8 are currently hospitalized, 56 have been discharged, and 13 did not require hospitalization. Five people have now died in connection with the cluster.
The family of one victim — an 88-year-old Air Force veteran who had been married for 50 years — is planning to sue the owner of the cooling tower linked to the outbreak once the source is officially identified, per ABC7 New York.
"We believe we have now eliminated the source of exposure. Regardless, we will continue to inspect cooling towers and aggressively enforce health laws," Mayor Zohran Mamdani said.
No new cases have been diagnosed since July 15. The last person known to have developed symptoms did so more than a week ago. Health officials say these trends suggest the source of exposure has likely been eliminated.
A fourth person has died in connection with the UES Legionnaires' cluster, Health Commissioner Dr. Alister Martin confirmed Monday. Deaths were reported on four consecutive days — Friday through Monday.
The NYC Health Department said it believes the source of the bacteria has likely been eliminated. Officials will continue inspecting every cooling tower that tested positive for Legionella bacteria.
"It is with great sadness that I report a third person has died in connection with the Legionnaires' disease community cluster on the Upper East Side," NYC Health Commissioner Dr. Alister F. Martin said.
As of July 19, the NYC Health Department has confirmed 74 total cases and 3 deaths. Eight people remain hospitalized and 51 have been discharged.
As of July 16, the NYC Health Department has confirmed 67 total cases — 12 are currently hospitalized, 43 have been discharged, and 12 did not require hospitalization. No deaths have been reported.
As of July 15, the NYC Health Department has confirmed 64 total cases.
57 buildings have completed required remediation. The remaining 19 — including the Metropolitan Museum of Art at 1000 Fifth Ave — have been ordered to complete remediation by Thursday, July 16.
As of July 14, 76 buildings on the Upper East Side have tested positive for Legionella bacteria in preliminary PCR testing — more than double the 31 previously reported, per ABC7 New York. Of the 183 cooling towers sampled in the area, no tests are outstanding.
A more conclusive culture test is also being conducted on all sampled cooling towers. Culture tests take up to two weeks for results and will confirm which towers had live Legionella bacteria growing at the time the water sample was collected.
The NYC Health Department is conducting PCR tests on cooling towers in the affected area. PCR tests identify traces of living or dead Legionella bacteria. Owners of towers with positive initial results must immediately drain, clean, and disinfect their cooling towers. Officials note that a positive PCR test does not confirm a cooling tower is connected to the outbreak.
As of July 14, the NYC Health Department has confirmed 63 total cases — 12 are currently hospitalized, 40 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 13, the NYC Health Department has confirmed 60 total cases — 15 are currently hospitalized, 34 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 12th, the NYC Department of Health has confirmed 59 total cases — 15 are currently hospitalized, 33 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 9, the NYC Health Department has confirmed 46 cases and 22 hospitalizations in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side. No deaths have been reported.
People at increased risk include those age 50 or older, smokers, people with chronic lung disease, and those with weakened immune systems. If you have visited the area since late June and develop fever, cough, or difficulty breathing, contact a healthcare provider immediately.
The active testing zone stretches from East 74th Street to East 97th Street. Zip codes 10028, 10128, and 10075 remain the affected area.
The Mamdani administration pledged to release the addresses of buildings with positive initial Legionella tests. It is not yet clear when that information will be released.
Over 160 water towers in the affected area are being investigated as the likely source. Remediation efforts have already begun on some towers. The specific source of the bacteria has not yet been identified.
As of July 8, the NYC Health Department has confirmed 36 cases and 22 hospitalizations in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side. No deaths have been reported.
Please view the attached informational flyer provided by the NYC Department of Health.
Additionally, 21 of those individuals have been hospitalized. No deaths have been reported as of July 7th.
According to an update from the NYC Health Department, 28 cases of Legionnaires have been confirmed as of July 7th.
The NYC Department of Health is hosting a town hall meeting regarding the Legionnaires' disease cluster tonight, Tuesday, July 7, at 6 p.m. at the Church of St. Ignatius Loyola — Wallace Hall, 980 Park Ave., New York, NY 10028. Residents with concerns are encouraged to attend.
The NYC Health Department believes the likely source of the bacteria is a cooling tower in the area, which sprays a mist containing Legionella bacteria. All cooling towers in the area are being sampled and tested at the NYC Public Health Lab. Results take several weeks to process.
Seventeen people have been hospitalized. However, no deaths have been associated with the cluster.
As of July 6, the cluster has grown to 23 confirmed cases in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side.
The address reported for this incident has changed to Upper East Side - 10028, 10128 & 10075.
The address reported for this incident has changed to Upper East Side - 10028, 10125 & 10075.
Last summer, a Legionnaires' outbreak in Central Harlem led to more than 100 confirmed illnesses.
Legionnaires' disease is not spread person-to-person. It is caused by inhaling contaminated water vapor and can be treated with antibiotics when caught early.
Mayor Mamdani confirmed the infections are not related to buildings' plumbing or air conditioning. Tap water and air conditioners are safe to use.
The source of the outbreak remains under investigation. The Health Department is testing cooling towers throughout the affected area as a possible source. No specific source has been identified.
Officials are also urging anyone who visited the east side of Central Park between East 76th Street and East 97th Street since late June to monitor for symptoms and seek medical attention if they develop fever, cough, or difficulty breathing.
The cluster started with just two confirmed cases when first announced Thursday.
The cluster covers zip codes 10028, 10128, and 10075, including Yorkville and Carnegie Hill.
The NYC Health Department has confirmed 14 Legionnaires' disease cases on the Upper East Side.
Incident reported at Upper East Side.
95 cooling towers have now tested culture negative after cleaning and remediation efforts.
As of July 28, the NYC Health Department has confirmed 90 total cases — 7 are currently hospitalized, 65 have been discharged, and 13 did not require hospitalization. No new deaths have been reported.
Of the 183 cooling towers tested at 160 buildings, 57 cooling towers at 56 buildings have tested culture positive — confirming the presence of live Legionella bacteria at the time of sampling. All have been cleaned and disinfected. 79 cooling towers have now tested culture negative.
As of July 27, the NYC Health Department has confirmed 89 total cases — 7 are currently hospitalized, 64 have been discharged, and 13 did not require hospitalization. No new deaths have been reported.
Of the 183 cooling towers tested at 160 buildings, 51 cooling towers at 50 buildings have now tested culture positive — confirming the presence of live Legionella bacteria at the time of sampling. All have been cleaned and disinfected. 19 cooling towers have tested culture negative. All other results are still pending.
As of July 23, the NYC Health Department has confirmed 84 total cases — 7 are currently hospitalized, 59 have been discharged, and 13 did not require hospitalization. Five people have died in connection with the cluster.
More conclusive culture tests — which confirm the presence of live Legionella bacteria — found 34 cooling towers at 33 buildings tested positive. All have been cleaned and disinfected.
Of the 183 cooling towers tested at 160 buildings, 77 towers at 75 buildings tested positive for Legionella bacteria in initial PCR screening.
As of July 22, the NYC Health Department has confirmed 82 total cases — 8 are currently hospitalized, 56 have been discharged, and 13 did not require hospitalization. Five people have now died in connection with the cluster.
The family of one victim — an 88-year-old Air Force veteran who had been married for 50 years — is planning to sue the owner of the cooling tower linked to the outbreak once the source is officially identified, per ABC7 New York.
"We believe we have now eliminated the source of exposure. Regardless, we will continue to inspect cooling towers and aggressively enforce health laws," Mayor Zohran Mamdani said.
No new cases have been diagnosed since July 15. The last person known to have developed symptoms did so more than a week ago. Health officials say these trends suggest the source of exposure has likely been eliminated.
A fourth person has died in connection with the UES Legionnaires' cluster, Health Commissioner Dr. Alister Martin confirmed Monday. Deaths were reported on four consecutive days — Friday through Monday.
The NYC Health Department said it believes the source of the bacteria has likely been eliminated. Officials will continue inspecting every cooling tower that tested positive for Legionella bacteria.
"It is with great sadness that I report a third person has died in connection with the Legionnaires' disease community cluster on the Upper East Side," NYC Health Commissioner Dr. Alister F. Martin said.
As of July 19, the NYC Health Department has confirmed 74 total cases and 3 deaths. Eight people remain hospitalized and 51 have been discharged.
As of July 16, the NYC Health Department has confirmed 67 total cases — 12 are currently hospitalized, 43 have been discharged, and 12 did not require hospitalization. No deaths have been reported.
As of July 15, the NYC Health Department has confirmed 64 total cases.
57 buildings have completed required remediation. The remaining 19 — including the Metropolitan Museum of Art at 1000 Fifth Ave — have been ordered to complete remediation by Thursday, July 16.
As of July 14, 76 buildings on the Upper East Side have tested positive for Legionella bacteria in preliminary PCR testing — more than double the 31 previously reported, per ABC7 New York. Of the 183 cooling towers sampled in the area, no tests are outstanding.
A more conclusive culture test is also being conducted on all sampled cooling towers. Culture tests take up to two weeks for results and will confirm which towers had live Legionella bacteria growing at the time the water sample was collected.
The NYC Health Department is conducting PCR tests on cooling towers in the affected area. PCR tests identify traces of living or dead Legionella bacteria. Owners of towers with positive initial results must immediately drain, clean, and disinfect their cooling towers. Officials note that a positive PCR test does not confirm a cooling tower is connected to the outbreak.
As of July 14, the NYC Health Department has confirmed 63 total cases — 12 are currently hospitalized, 40 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 13, the NYC Health Department has confirmed 60 total cases — 15 are currently hospitalized, 34 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 12th, the NYC Department of Health has confirmed 59 total cases — 15 are currently hospitalized, 33 have been discharged, and 11 did not require hospitalization. No deaths have been reported.
As of July 9, the NYC Health Department has confirmed 46 cases and 22 hospitalizations in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side. No deaths have been reported.
People at increased risk include those age 50 or older, smokers, people with chronic lung disease, and those with weakened immune systems. If you have visited the area since late June and develop fever, cough, or difficulty breathing, contact a healthcare provider immediately.
The active testing zone stretches from East 74th Street to East 97th Street. Zip codes 10028, 10128, and 10075 remain the affected area.
The Mamdani administration pledged to release the addresses of buildings with positive initial Legionella tests. It is not yet clear when that information will be released.
Over 160 water towers in the affected area are being investigated as the likely source. Remediation efforts have already begun on some towers. The specific source of the bacteria has not yet been identified.
As of July 8, the NYC Health Department has confirmed 36 cases and 22 hospitalizations in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side. No deaths have been reported.
Please view the attached informational flyer provided by the NYC Department of Health.
Additionally, 21 of those individuals have been hospitalized. No deaths have been reported as of July 7th.
According to an update from the NYC Health Department, 28 cases of Legionnaires have been confirmed as of July 7th.
The NYC Department of Health is hosting a town hall meeting regarding the Legionnaires' disease cluster tonight, Tuesday, July 7, at 6 p.m. at the Church of St. Ignatius Loyola — Wallace Hall, 980 Park Ave., New York, NY 10028. Residents with concerns are encouraged to attend.
The NYC Health Department believes the likely source of the bacteria is a cooling tower in the area, which sprays a mist containing Legionella bacteria. All cooling towers in the area are being sampled and tested at the NYC Public Health Lab. Results take several weeks to process.
Seventeen people have been hospitalized. However, no deaths have been associated with the cluster.
As of July 6, the cluster has grown to 23 confirmed cases in the Carnegie Hill and Yorkville neighborhoods on the Upper East Side.
The address reported for this incident has changed to Upper East Side - 10028, 10128 & 10075.
The address reported for this incident has changed to Upper East Side - 10028, 10125 & 10075.
Last summer, a Legionnaires' outbreak in Central Harlem led to more than 100 confirmed illnesses.
Legionnaires' disease is not spread person-to-person. It is caused by inhaling contaminated water vapor and can be treated with antibiotics when caught early.
Mayor Mamdani confirmed the infections are not related to buildings' plumbing or air conditioning. Tap water and air conditioners are safe to use.
The source of the outbreak remains under investigation. The Health Department is testing cooling towers throughout the affected area as a possible source. No specific source has been identified.
Officials are also urging anyone who visited the east side of Central Park between East 76th Street and East 97th Street since late June to monitor for symptoms and seek medical attention if they develop fever, cough, or difficulty breathing.
The cluster started with just two confirmed cases when first announced Thursday.
The cluster covers zip codes 10028, 10128, and 10075, including Yorkville and Carnegie Hill.
The NYC Health Department has confirmed 14 Legionnaires' disease cases on the Upper East Side.
Incident reported at Upper East Side.
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Download CitizenComments30
This happens every year in different parts of the city. You would think there would be some type of health regulation about it by now.
@newyorkUser1778395017 probably don’t have the money to do that in mandanistan
Here we go again
@perseph 😂😂😂
Yes, Legionnaires' disease can be fatal. Left untreated, it has a case-fatality rate of roughly 10%, which can climb up to 25% for healthcare-associated infections or those with underlying health conditions. However, it is highly treatable with prompt antibiotic therapy
If you worried about insurance, you can get TEMPORARY MEDICAID for 2 weeks.
Happens every summer…crazy.
This happens every year in different parts of the city. You would think there would be some type of health regulation about it by now.
@newyorkUser1778395017 probably don’t have the money to do that in mandanistan
Here we go again
@perseph 😂😂😂
Yes, Legionnaires' disease can be fatal. Left untreated, it has a case-fatality rate of roughly 10%, which can climb up to 25% for healthcare-associated infections or those with underlying health conditions. However, it is highly treatable with prompt antibiotic therapy
If you worried about insurance, you can get TEMPORARY MEDICAID for 2 weeks.
Happens every summer…crazy.
This happens every year in different parts of the city. You would think there would be some type of health regulation about it by now.
@newyorkUser1778395017 probably don’t have the money to do that in mandanistan
Here we go again
@perseph 😂😂😂
Yes, Legionnaires' disease can be fatal. Left untreated, it has a case-fatality rate of roughly 10%, which can climb up to 25% for healthcare-associated infections or those with underlying health conditions. However, it is highly treatable with prompt antibiotic therapy
If you worried about insurance, you can get TEMPORARY MEDICAID for 2 weeks.
Happens every summer…crazy.
This happens every year in different parts of the city. You would think there would be some type of health regulation about it by now.
@newyorkUser1778395017 probably don’t have the money to do that in mandanistan
Here we go again
@perseph 😂😂😂
Yes, Legionnaires' disease can be fatal. Left untreated, it has a case-fatality rate of roughly 10%, which can climb up to 25% for healthcare-associated infections or those with underlying health conditions. However, it is highly treatable with prompt antibiotic therapy
If you worried about insurance, you can get TEMPORARY MEDICAID for 2 weeks.
Happens every summer…crazy.
Stay informed on local incidents
Download Citizen
This happens every year in different parts of the city. You would think there would be some type of health regulation about it by now.
@newyorkUser1778395017 probably don’t have the money to do that in mandanistan
Here we go again
@perseph 😂😂😂
Yes, Legionnaires' disease can be fatal. Left untreated, it has a case-fatality rate of roughly 10%, which can climb up to 25% for healthcare-associated infections or those with underlying health conditions. However, it is highly treatable with prompt antibiotic therapy
If you worried about insurance, you can get TEMPORARY MEDICAID for 2 weeks.
Happens every summer…crazy.