Plague is spread to people through the bite of infected fleas or by handling an animal infected with plague. This disease is not spread in Connecticut; however, residents can acquire it by traveling to other areas of the United States and other countries. In the US, most cases of plague occur in rural areas of the 4-corner states of New Mexico, Arizona, Colorado and Utah. Epidemics have been reported in Africa, Asia, and South America. Plague is a serious disease; however, it is treatable with antibiotics.  

About Plague

Where Has Plague Been Found?

Traveler’s Health

Information for Clinicians

Clinical Guidance

National Surveillance Case Definitions 

Connecticut Provider Reporting Information – Category 1 disease, call DPH to report

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 Plague Surveillance

The Connecticut Department of Public Health (DPH) has conducted surveillance for plague for over 40 years.  It is a very rare disease reported in Connecticut, with only one case reported since 1980.

Connecticut Annual Infectious Diseases Statistics





This page last updated 11/9/2022.