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COVID-19: New Data Released On Number Of Cases Among Fully Vaccinated CT Residents

COVID-19 vaccine
COVID-19 vaccine Photo Credit: Pixabay/alirazagurmani9272

New data released by the state Department of Health reveals the percentage of Connecticut residents who have become infected with COVID-19 despite being fully vaccinated.

As Connecticut surpasses the 50-percent mark for residents ages 16 and over who are now fully vaccinated, the data on so-called breakthrough cases shows that the COVID vaccines are highly effective at fighting the virus. 

Less than 0.1 percent of Connecticut’s fully vaccinated persons reported to DPH as having contracted the virus, the department said.

Nationwide, in data released on Friday, April 30, of the nearly 100 million fully vaccinated people at that time, only 9,245 became infected with so-called vaccine breakthrough cases. That's an efficacy rate of 99.999.

To be fully vaccinated, two weeks or more must have passed since they received the second dose of the Pfizer or Moderna vaccine or the single-dose Johnson & Johnson vaccine.

In Connecticut, of the 1,467,189 persons who completed their vaccine series, 242 have been confirmed as contracting COVID-19, the department said on Friday, May 7. Of those, 109 (45 percent) had no symptoms of the disease.

Three deaths have occurred among the 242 vaccine breakthrough cases. All three individuals were confirmed to have had underlying medical conditions and were in the following age groups: 

  • 55-64 (1), 
  • 65-74 (1), 
  • 75+ (1). 

Nationally, the CDC has reported a total of 132 vaccine breakthrough deaths.

In addition to the overall number of breakthrough cases, CT DPH also announced that of the 242 breakthrough cases:

  • 159 (65.7 percent) cases were among women
  • 58 (24 percent) cases occurred among persons living in congregate settings (i.e. – nursing homes, assisted living facilities)
  • 32 (13.2 percent) cases resulted in hospitalizations

“The main takeaway is that COVID-19 vaccines are highly effective and cases of infection after a person is fully vaccinated are very rare," said Acting DPH Commissioner Dr. Deidre Gifford. "The best protection against severe illness, hospitalization, and death from COVID-19 is vaccination, and I strongly urge all eligible Connecticut residents who have not yet gotten vaccinated to do so."

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