In the previous two weeks, only 40 new cases were recorded.
Much of the outbreak is linked to recent domestic and international travel, according to the health department.
Connecticut, like New York and New Jersey, requires travelers to self-quarantine for 14 days if they arrive from a coronavirus hotspot state.
The health service encourages residents to stay at home when possible, limit going out and wear a mask when leaving the house.
Anyone who thinks they have been exposed to the virus are urged to get tested as soon as possible and to stay home until they receive their test results. Anyone who tests positive is asked to stay home for 10 days.
CORONAVIRUS: NY Department of Health | NY Call 1- (888) -364-3065 | NYC Department of Health | NYC Call 311, SMS COVID to 692692 | NJ COVID-19 Information Center | NJ Call 1- (800) -222-1222 or 211, send NJCOVID to 898211 | CT Health Dept. | CT Appeal 211 | Centers for Disaster Control and Prevention
Residents are also encouraged to answer their phones if a contact tracer attempts to make contact.
More information for Connecticut residents, including where to find the nearest testing site, can be found at ct.gov/coronavirus.
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