Vaccines less protective in Colorado county with Delta variant surge: CDC study – News Vibe24

    Vaccines less protective in Colorado county with Delta variant surge: CDC study - Times of India
    Covid-19 infections in Colorado County with a Delta outbreak this spring were more common among fully vaccinated people than in other counties in the state where it was lower, according to a study by the U.S. Centers for Disease Control and Prevention. published on Friday.
    The study also found that the Delta variant caused a more serious illness. Cases, admissions and deaths at the hospital’s intensive care unit were higher in Mesa, Colorado than anywhere else in the state, he said.
    The CDC recently said in a leaked report that it believed the Delta variant was causing more serious illness among those who had not been vaccinated against other versions of the coronavirus, citing studies outside the United States.
    In Mesa County, the Delta variation rate 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 all Delta cases in the state.
    The estimated “crude effectiveness” of Covid-19 vaccines against infection prevention among fully vaccinated people in Mesa County was 78%, compared with 89% for other Colorado counties where the variant was less prevalent.
    Lower estimates may “support previous findings that Covid-19 vaccines provide moderately lower protection against symptomatic Delta variant infection,” the study found.
    In another study also published Friday, CDC data showed that a person who was infected with Covid-19 and fully vaccinated was less likely to become infected again than someone who had the virus but had not been vaccinated.
    An analysis of 246 patients in Kentucky found that state residents with a previous Covid-19 infection who were not vaccinated were 2.34 times more likely to have a recurrence than those who had been vaccinated and had been previously infected.
    “If you have had Covid-19 in the past, please get vaccinated,” said CDC Director Dr. Rochelle Walensky.


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