As the highly transmissible Delta variant spreads, more vaccinated Americans are reporting they have tested positive for Covid-19. Here’s what you need to know about these so-called 'breakthrough' cases.
As the highly transmissible Delta variant spreads, more vaccinated Americans are reporting they haveWhat is a breakthrough infection?contracts the virus more than 14 days after they have been fully vaccinated.
This is because aging impairs the body’s intrinsic ability to adapt to an immune response, according to Dr. Akiko Iwasaki, an immunologist at Yale University. A report from late May by the CDC found more than 10,000 cases of Covid-19 in vaccinated people at least 14 days after their final shot across 46 states and territories between Jan. 1 and April 30 of this year. That equates to about 0.01% of the roughly 100 million people who were fully vaccinated as of April 30.Get a morning briefing about the coronavirus pandemic three times a week and a weekly Health newsletter when the crisis abates.
. As of July 19, the CDC recorded 5,914 cases across 49 states and territories of patients with the Covid-19 vaccine that were hospitalized or died. Of those cases, 74% were in people over the age of 65. Among the full group there were 1,141 deaths. The CDC said 26% of those fatalities were among people who were asymptomatic or who died from something not related to Covid-19.
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