Tag Archives: Mosquito-Borne Disease

Onondaga County Reports First Human Case of West Nile Virus of the Season

ONONDAGA COUNTY, AUGUST 20, 2026 – Onondaga County Health Commissioner Dr. Kathryn Anderson announced today that the first human case of West Nile virus (WNV) infection in 2026 has been reported in an elderly adult residing in Liverpool. The individual was hospitalized, has since been discharged, and has recovered. “West Nile virus is transmitted through… Read more >

Stay Safe This Holiday Weekend: Tick, Mosquito & Heat Precautions

ONONDAGA COUNTY, JULY 2, 2026 – With the upcoming holiday weekend and the high temperatures in Central New York, Onondaga County Health Department urges all residents to take proactive measures to protect against tick and mosquito bites and extreme heat. While spending time outdoors is encouraged, it’s important to keep in mind that ticks, mosquitoes,… Read more >

Two Additional Human Cases of West Nile Virus in Onondaga County; Dead Bird Surveillance Partnership Helps Detect Virus Activity

ONONDAGA COUNTY, SEPTEMBER 2, 2025 – The Onondaga County Health Department has received reports of two additional human cases of West Nile Virus (WNV) in county residents. The first human case of the season was announced on July 16, 2025, bringing the total to three cases this year. These new cases highlight the ongoing risk… Read more >

Weather Favorable for Mosquito Spraying Planned for the Cicero Swamp

UPDATE: The aerial spraying of Cicero Swamp and the immediate surrounding areas was completed as planned. _________________________________________________ ONONDAGA COUNTY, AUGUST 4, 2025 – Current weather conditions are suitable for this evening’s aerial mosquito spraying of the Cicero Swamp and the immediate surrounding areas, provided there is no sudden drop in visibility due to wildfire smoke.… Read more >

Additional Mosquito Pools Found Positive for EEEV and WNV, Spraying of Cicero Swamp Planned

ONONDAGA COUNTY, AUGUST 1, 2025 – The Onondaga County Health Department was notified that additional mosquitoes collected from traps located in the Cicero Swamp area in the town of Cicero tested positive for eastern equine encephalitis virus (EEEV) and West Nile virus (WNV). On July 29, the Health Department received confirmation that mosquitoes from traps… Read more >

Onondaga County Reports First Human Case of West Nile Virus Since 2019; First Finding of Eastern Equine Encephalitis Virus in Mosquitoes this Season

ONONDAGA COUNTY, JULY 16, 2025 – Onondaga County Health Commissioner Dr. Kathryn Anderson announced today that the first human case of West Nile virus (WNV) infection since 2019 has been reported in an elderly adult residing in the Town of Cicero. The individual was hospitalized, has since been discharged, and is currently recovering. Additionally, Eastern… Read more >

Additional Mosquito Pools Found Positive for EEEV and WNV

ONONDAGA COUNTY, SEPTEMBER 12, 2024 – The Onondaga County Health Department continues to receive reports of mosquito pools testing positive for Eastern Equine Encephalitis virus (EEEV) and West Nile Virus (WNV).  According to the New York State Department of Health, current surveillance across New York State (NYS) and other northeast states shows an above-normal level… Read more >

Additional Mosquito Pools Found Positive for EEEV and WNV, Spraying of Cicero Swamp Planned

ONONDAGA COUNTY, AUGUST 6, 2024 – The Onondaga County Health Department has been notified that additional mosquitoes collected from traps located in the Cicero Swamp area in the town of Cicero tested positive for eastern equine encephalitis virus (EEEV) and West Nile virus (WNV). On July 30, the Health Department received confirmation that mosquitoes from… Read more >

Mosquitoes Found Positive for Eastern Equine Encephalitis Virus and West Nile Virus in Onondaga County

ONONDAGA COUNTY, JULY 24, 2024 – The Onondaga County Health Department was notified by the New York State Department of Health Wadsworth Laboratory today that mosquito pools from traps in Onondaga County show the presence of several viruses. West Nile virus (WNV) and Flanders virus (FLAV) were detected at East Taft Road in the Town… Read more >

Jamestown Canyon Virus and Flanders Virus Detected in Mosquito Pools in Onondaga County

Onondaga County Health Commissioner Dr. Kathryn Anderson announced today that lab results show the presence of the Jamestown Canyon virus (JCV) and Flanders Virus (FLAV) in mosquitoes trapped in Onondaga County. The finding was the result of the Health Department’s mosquito surveillance and control program which collects and tests mosquitoes for viruses. There have been… Read more >