This map shows the parts of the country where where black legged ticks thrive. Black legged ticks otherwise known as deer ticks here in Connecticut are responsible for transmitting Lyme Disease to humans. Today there is an increasing number of Lyme Disease cases all throughout Connecticut as well as across the nation. The CDC only expects this number to to get worse as time goes on.

Below is an article by CDC.gov about current status on tick surveillance in the U.S.

https://www.cdc.gov/ticks/surveillance/index.html