Breakthrough infections of COVID-19 are quite rare, according to unpublished data from the Centers for Disease Control and Prevention.
There have been about 153,000 symptomatic breakthrough cases in the United States, according to a CDC document acquired by ABC News. The numbers include only adults and do not account for asymptomatic cases. That represents about 0.1% of the nearly 155 million adults who have been fully vaccinated.
A breakthrough case is one in which a person tests positive for the coronavirus more than two weeks after being fully vaccinated.
The CDC document says the rise in breakthrough cases is driven by both the substantial number of people who are vaccinated and the rising number of COVID-19 cases among the unvaccinated. In the last week, the seven-day average of COVID-19 cases has risen from 30,682 to 47,455. It is driven by the more infectious delta variant, which now accounts for 83% of new cases.
Fully vaccinated people, though, have little to worry about.
“The risk to fully vaccinated people is dramatically less than that to unvaccinated individuals. The occurrence of breakthrough cases is expected and, at this point, is not at a level that should raise any concerns about the performance of the currently available vaccines,” Matthew Ferrari, director of the Center for Infectious Disease Dynamics at Pennsylvania State University, told ABC News.
According to the CDC, there have been only 5,914 breakthrough cases that have resulted in hospitalization and/or death. That represents only 0.003% of the 163 million people in the U.S. who have been fully vaccinated. Of those with breakthrough infections who have been hospitalized and/or died, nearly three-quarters were age 65 and older.
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Original Author: David Hogberg
Original Location: Breakthrough COVID-19 cases rare, CDC data indicate