May 13, 2022: The Centers for Disease Control and Prevention listed six Connecticut Counties in the High/Orange category as part of its COVID-19 Community Levels Map. Only Fairfield and New London Counties are listed in the Medium/Yellow category. Residents in these counties should wear a mask indoors in public; stay up to date with COVID-19 vaccines and get tested if they have symptoms. Additional precautions may be needed for residents who are at high risk for severe illness. Visit the CDC COVID-19 Community Levels Map for updates.

Zika Virus Information for Healthcare Providers


Zika virus is a single-stranded RNA virus of the Flaviviridae family, genus Flavivirus. Zika virus is transmitted to humans primarily through the bite of an infected Aedes species mosquito, but perinatal, in utero, sexual and possible transfusion transmission events have also been reported. Most people infected with Zika virus are asymptomatic. Characteristic clinical findings are acute onset of fever with maculopapular rash that is usually itchy, arthralgia, or conjunctivitis. Other commonly reported symptoms include myalgia and headache. Clinical illness is usually mild with symptoms lasting for several days to a week. Severe disease requiring hospitalization is uncommon and case fatality is low. However, there have been cases of Guillain-Barré syndrome. Zika virus is a cause of microcephaly and possibly other congenital neurologic abnormalities. Please see information below for up-to-date recommendations for testing and management of infants and women of childbearing age, pregnant women, and their partners.

State Specific Information


Including updated criteria for testing at the State Public Health Laboratory, specimen handling, and testing at commercial laboratories.

See instructions in the updated "Testing Performed to Identify Zika Virus Infection" guidelines.


Reporting Case-Patients with Zika Virus Infections


Centers for Disease Control and Prevention (CDC)



To contact the Epidemiology and Emerging Infections Program, please call 860-509-7994.