Connecticut Department of Public Health Issues Health Alert: Litchfield County Now Upgraded To The “High Transmission” Category

Middlesex County Also Returns To The “High Transmission” Category

This transmission electron microscope image shows SARS-CoV-2—also known as 2019-nCoV, the virus that causes COVID-19—isolated from a patient in the U.S. Virus particles are shown emerging from the surface of cells cultured in the lab. The spikes on the outer edge of the virus particles give coronaviruses their name, crown-like. (NIAID Rocky Mountain Laboratories (RML), U.S. NIH)

HARTFORD, CT – The Centers for Disease Control has now placed Litchfield County in the “High Transmission” category of COVID-19. Litchfield is the sixth county in the state to be upgraded to the High Transmission category. New Haven, Hartford, New London, Fairfield and Middlesex Counties also are listed as High Transmission.

Middlesex County was downgraded last week by the CDC to the Substantial category but was upgraded back to High Transmission on Wednesday afternoon. The other two Connecticut counties also are still classified by the CDC as being in the “Substantial Transmission” category.

The High Transmission category—which is the most severe as defined by the CDC—is 100 or more cases per 100,000 people or a positivity rate of 10 percent or higher over the past seven days.

The Substantial Transmission category is 50 to 100 cases per 100,000, or a positivity rate between 8 and 10 percent over the past seven days.

With the ongoing rapid increase in cases of COVID-19 in the state over the last 14 days due to the spread of the Delta variant, the Connecticut Department of Public Health strongly recommends that ALL CONNECTICUT residents over age two years, whether vaccinated or unvaccinated, return to wearing masks when in indoor public spaces.

Vaccinated and unvaccinated individuals at high risk for complications from COVID-19, including those with compromised immune systems, diabetes, asthma, other lung diseases, pregnancy or obesity, should also avoid large indoor gatherings that may include a mix of vaccinated and unvaccinated individuals.

Vaccination remains the most important defense against illness and hospitalization from COVID-19.  So-called “vaccine breakthrough” cases have occurred in Connecticut, but they remain rare, and the vast majority of hospitalizations and deaths in Connecticut and around the country are in unvaccinated individuals. DPH strongly recommends that unvaccinated individuals get vaccinated as soon as possible to help stop the ongoing spread of the Delta variant.

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