Latest Mosquito Testing Results
The Connecticut Agricultural Experiment Station traps, identifies, and tests mosquitoes for encephalitis viruses.
State of Connecticut Mosquito Management Program
Search Results
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Connecticut Confirms First Case of Eastern Equine Encephalitis for 2023 in Emu
State Veterinarian Stresses Importance of Vaccinations to Protect Animals
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DPH announces second case of West Nile virus infection this year
A second Connecticut resident has tested positive for West Nile virus (WNV) infection.
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State Mosquito Monitoring Program Begins Testing for Mosquito-Borne Viral Diseases
The mosquito trapping and testing program, coordinated by the Connecticut Agricultural Experiment Station, begins June 2, 2025, and lasts until the end of October.
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State Reports Expansion of West Nile Virus
The State Mosquito Management Program is warning Connecticut residents about the increasing risk of infection by West Nile virus this season.
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Mosquito Season Alert-CT Horse and Livestock Owners Advised to Guard Against Mosquito-Borne Diseases
The Connecticut Department of Agriculture reminds the state’s horse and livestock community to take preventative measures to protect against mosquito-borne diseases this season.
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Connecticut DPH Announces First Two Cases of West Nile Virus Infection this Year
Residents Advised to Protect Themselves and Family Members from Mosquito Bites
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Risk of West Nile Virus Continues - Third Human Case Identified in the State
Virus-positive mosquitoes continue to be detected in Connecticut towns
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State Officials Report Positive Mosquitoes for Eastern Equine Encephalitis Virus in Voluntown
The Connecticut Department of Public Health is advising residents in southeastern Connecticut to protect themselves and their children from mosquitoes to reduce the chance of contracting eastern equine encephalitis (EEE) virus.
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Equine Owners Reminded to Protect Against Mosquito-Borne Diseases
The Connecticut Department of Agriculture (CT DoAg) reminds the state’s equine community to take appropriate measures to protect against mosquito-borne diseases this season, including eastern equine encephalitis and West Nile virus.
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State Reports Expansion of West Nile Virus
The State Mosquito Management Program is warning Connecticut residents about the increasing risk of infection by West Nile virus this season.
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State Reports Positive Mosquitoes for West Nile Virus in New Haven
The State of Connecticut Mosquito Management Program announced that mosquitoes trapped in New Haven on June 17, 2024, tested positive for West Nile virus.
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DEEP Reports Case of EEE in White-tailed Deer in Connecticut
A white-tailed deer that exhibited neurologic symptoms and died on August 12, 2024, in Lisbon, Connecticut, was infected with the EEE virus.
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Connecticut Confirms First Case of Eastern Equine Encephalitis for 2024 in Horse
The Connecticut Department of Agriculture reports the state’s first case this year of EEE in a 23-year-old unvaccinated gelded horse from Fairfield County.
Human Surveillance of West Nile Virus
Surveillance includes monitoring mosquitoes, domestic animals, poultry, and humans. The Connecticut Department of Public Health provides laboratory testing of cerebrospinal fluid and blood from persons hospitalized with illnesses consistent with WNV infection.
Mosquito Control Around the Home
The best way to manage mosquitoes around the home is to eliminate standing water where mosquitoes can lay eggs. DEEP’s Wetland Habitat and Mosquito Management Program uses an integrated approach to manage mosquitoes that includes public education and cultural, biological, and chemical control methods.