Emergency Preparedness
News Alerts
NYS EP Alert 8.24.2026 | Measles Cases Confirmed in New York
Measles Cases Confirmed in New York
The New York State Department of Health (DOH / the Department) has issued a health advisory regarding confirmed measles cases in multiple under-immunized communities across New York State.
NYS EP Alert 8.19.2026 | RISK OF SEVERE DISEASE FROM MOSQUITO & TICK BITES
RISK OF SEVERE DISEASE FROM MOSQUITO & TICK BITES
The New York State Department of Health (NYSDOH) has issued a health advisory warning of an increased risk of severe mosquito- and tick-borne illnesses among patients taking certain immunosuppressive medications, particularly B cell-depleting therapies.August and September are peak months for mosquito-borne illnesses in New York. West Nile virus, eastern equine encephalitis (EEE), Powassan virus and Jamestown Canyon virus can all be acquired in the state. NYSDOH advises that patients taking immunosuppressive medications should take particular care to prevent mosquito and tick bites.
NYC EP Alert 8.6.2026 | NYC Extreme Heat Advisory
NYC Extreme Heat Advisory
New York City is under a heat advisory for Thursday August 6 and Friday August 7 with heat index values forecasted to top 100 degrees. Hot weather will continue through the weekend, and temperatures will likely remain elevated next week. Cooling centers will be open on Thursday through the weekend.
NYC EP Alert 7.31.2026 | Upper East Side Legionnaires’ Disease Cluster
Upper East Side Legionnaires’ Disease Cluster
The New York City Department of Health has announced that the elevated risk associated with the Upper East Side Legionnaires’ disease cluster has ended.
NYS EP Alert 7.28.2026 | Heavy Rain, Flash Flooding, and Severe Storms Expected Across New York
Heavy Rain, Flash Flooding, and Severe Storms Expected Across New York
The New York State Department of Health (DOH) is advising healthcare facilities, home care agencies, and hospice providers to prepare for a series of summer storms expected to bring heavy rainfall, flash flooding, severe thunderstorms, damaging winds, and possible power outages beginning Tuesday, July 28 and continuing through Wednesday.
NYS EP Alert 7.17.2026 | CDC Advisory: Cyclosporiasis
CDC Advisory: Cyclosporiasis
Today, the Department of Health (DOH / the Department) shared an Advisory from the Centers for Disease Control and Prevention (CDC) regarding cases of domestically acquired cyclosporiasis in multiple US states. Since May 1, 2026, CDC has received reports of 1,645 confirmed domestic cases of cyclosporiasis and is aware of more than 5,100 cases that require further analysis to confirm the illness as domestically acquired cyclosporiasis. This is substantially higher than the 249 cases reported nationally by this same time last year.
NYS EP Alert 7.16.2026 | Canadian Wildfire Smoke May Impact New York Air Quality
Canadian Wildfire Smoke May Impact New York Air Quality
Smoke from wildfires in Canada is expected to affect air quality across parts of New York beginning today. Air Quality Index (AQI) levels are forecast to reach Unhealthy for Sensitive Groups (Orange) and could periodically increase to Unhealthy (Red). Air quality conditions may change throughout the day.
NYS EP Alert 7.14.2026 | Extreme Heat and Severe Weather Expected Across New York State
Extreme Heat and Severe Weather Expected Across New York State
Home care provider agencies should prepare for a prolonged period of dangerous heat and potentially severe weather expected across New York State beginning Tuesday, July 14, and continuing through Friday, July 17.
NYC EP Alert 7.13.2026 | New York City Heat Advisory: July 14–15
New York City Heat Advisory: July 14–15
New York City is under a Heat Advisory from Tuesday, July 14, through Wednesday, July 15, with heat index values expected to reach 101°F. Hot and humid conditions are expected to continue through Friday.
NYS EP Alert 7.13.2026 | Increase in Cyclospora Infections Across New York
Increase in Cyclospora Infections Across New York
The New York State Department of Health (NYSDOH), in coordination with the New York City Health Department, is investigating an increase in cases of cyclospora infection (cyclosporiasis) across New York State.

