COVID-19 Community Levels Map Update, Dec. 2, 2022: The Centers for Disease Control and Prevention has listed Fairfield, Hartford, Litchfield, Middlesex, New Haven, Tolland, and Windham Counties in the Medium/Yellow category as part of its COVID-19 Community Levels Map. New London County is currently listed in the Low/Green category. Visit the CDC COVID-19 Community Levels Map for updates.

Zika Virus

Aedes aegypti


Zika virus is spread to people through the bite of infected mosquitoes. This disease is not spread in Connecticut; however, residents can acquire it by traveling to foreign endemic areas. Zika outbreaks have been reported in tropical Africa, Southeast Asia, the Pacific Islands, Central and South America, the Caribbean, and in Puerto Rico. In Connecticut, surveillance is conducted to identify travel-related cases. There is no vaccine to prevent or medicine to treat Zika virus infection. The best way to prevent getting sick from Zika virus is to prevent mosquito bites.


About Zika Virus

Where Has Zika Virus Been Found?

ArboNET National Data


Traveler’s Health

Zika Virus and Planning for Travel

Prevent Bug Bites


Information for Clinicians

Letter from the Centers for Disease Control and Prevention      

(Dengue and Zika Diagnostic Testing for Patients with a Clinically Compatible Illness and Risk for Infection with Both Viruses)


Clinical Guidance

National Surveillance Case Definition


Connecticut Provider Reporting Information 

Connecticut Laboratory Reporting Information


Directory of Clinical Testing Services provided by the State Public Health Laboratory

State Public Health Laboratory Contacts – for additional information

Connecticut Zika virus Surveillance

Zika virus was added to the state-wide reportable diseases list in February 2016. In Connecticut, surveillance is conducted to identify travel-related cases. Since 2016, an average of 40 cases (range 0 to 107) have been reported to the Connecticut Department of Public Health (DPH) annually. The majority of cases were reported during the 2016 outbreak.

Connecticut Annual Infectious Diseases Statistics




Page last updated 9/9/2022.