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 Horse Confirmed Positive for Eastern Equine Encephalitis Virus
This is the first equine case of Eastern equine encephalitis (EEE) for 2023.
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DPH announces first case of West Nile virus infection this year
A Connecticut resident tested positive for West Nile virus in July 2023.
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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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Continued Risk of West Nile Virus
The State Mosquito Management Program is warning Connecticut residents about the risk of infection by West Nile virus this season.
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Risk remains elevated as The Connecticut Agricultural Experiment Station (CAES) detects the virus within mosquito pools in 34 towns this season.
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Protection Against Mosquitoes Using Repellents FAQs
Frequently asked questions about how to protect yourself from mosquitoes by using repellents.
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Mosquito Monitoring and Surveillance
Accurate monitoring and sampling of mosquito population levels are essential to providing timely and effective management of mosquito outbreaks.
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The best way to manage mosquitoes around the home is to eliminate standing water where mosquitoes can lay eggs.
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Protecting Pets and Livestock from WNV FAQs
Pets and livestock can become infected with West Nile virus (WNV) if fed on by mosquitoes that carry the virus.
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.