Aug 6 (Reuters) – COVID-19 infections in a Colorado county with an increase in the Delta variant this spring were more common among fully vaccinated people than in other counties in the state where they were circulating at lower levels , said the United States Centers for Disease Control and Prevention. study published Friday showed.

The study also found that the Delta variant caused more severe illness. Cases, hospital intensive care unit admissions and deaths were higher in Mesa County, Colorado, than anywhere else in the state, he said.

The CDC recently said in a leaked report that it believed the Delta variant produced more severe illness in the unvaccinated than other versions of the coronavirus, citing studies outside of the United States. Read more

In Mesa County, the proportion of Delta variant cases more than doubled, from 43% for the week ending May 1 to 88% for the week ending June 5. The study looked at data from April 27 to June 6 in the county, which accounted for half of the Delta variant cases in the state.

An estimated “gross efficacy” of COVID-19 vaccines against preventing symptomatic infection among fully vaccinated people in Mesa County was 78%, compared to 89% for other counties in Colorado where the variant was less dominant.

The lower estimates may “provide support for previous findings that COVID-19 vaccines offer slightly less protection against symptomatic Delta variant infection,” the study found.

In another study also released on Friday, CDC data showed that a person infected with COVID-19 who has been fully vaccinated is less likely to be re-infected than a person who has had the virus but is not vaccinated. .

Analysis of 246 Kentucky patients showed that residents of the state who had previously been infected with COVID-19 and were not vaccinated had a 2.34 times greater risk of re-infection than those who had been vaccinated and had been infected previously. .

“If you have had COVID-19 in the past, please still get vaccinated,” CDC director Dr Rochelle Walensky said in a statement.

(This story corrects the symptomatic infection of the infection in paragraph 5)

Report by Manas Mishra in Bengaluru; edited by Caroline Humer and Richard Chang

Our Standards: The Thomson Reuters Trust Principles.

Aug 6 (Reuters) – COVID-19 infections in a Colorado county with an increase in the Delta variant this spring were more common among fully vaccinated people than in other counties in the state where they were circulating at lower levels said the US Centers for Disease Control and Prevention. study released Friday showed.

The study also found that the Delta variant caused more severe illness. Cases, hospital intensive care unit admissions and deaths were higher in Mesa County, Colorado, than anywhere else in the state, he said.

The CDC recently said in a leaked report that it believed the Delta variant produced more severe illness in the unvaccinated than other versions of the coronavirus, citing studies outside of the United States. Read more

In Mesa County, the proportion of Delta variant cases more than doubled, from 43% for the week ending May 1 to 88% for the week ending June 5. The study looked at data from April 27 to June 6 in the county, which accounted for half of the Delta variant cases in the state.

An estimated “gross efficacy” of COVID-19 vaccines against preventing symptomatic infection among fully vaccinated people in Mesa County was 78%, compared to 89% for other counties in Colorado where the variant was less dominant.

The lower estimates may “provide support for past findings that COVID-19 vaccines offer slightly less protection against symptomatic Delta variant infection,” the study found.

In another study also released on Friday, CDC data showed that a person infected with COVID-19 who has been fully vaccinated is less likely to be re-infected than a person who has had the virus but is not vaccinated. .

Analysis of 246 Kentucky patients showed that residents of the state who had previously been infected with COVID-19 and had not been vaccinated had 2.34 times the risk of re-infection compared to those who had been vaccinated and had been previously infected.

“If you’ve had COVID-19 in the past, please still get vaccinated,” CDC director Dr Rochelle Walensky said in a statement.

(This story corrects the symptomatic infection of the infection in paragraph 5)

Report by Manas Mishra in Bengaluru; edited by Caroline Humer and Richard Chang

Our Standards: The Thomson Reuters Trust Principles.