Less than 10% of Americans had coronavirus antibodies as of July, study finds

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"This research clearly confirms that despite high rates of COVID-19 in the United States ... we haven't come close to achieving herd immunity," said​ study author Dr. Julie Parsonnet.
Fewer than 10% of people in the United States had COVID-19 antibodies as of July, according to a study published Friday in The Lancet, a peer-reviewed medical journal.

"This research clearly confirms that despite high rates of COVID-19 in the United States, the number of people with antibodies is still low and we haven't come close to achieving herd immunity," said study author Dr. Julie Parsonnet, a professor of medicine at Stanford University.

Researchers from Stanford University examined blood samples from 28,500 patients receiving dialysis at about 1,300 facilities in 46 states in July, providing the first nationwide antibody analysis.

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Researchers said dialysis patients represented an ideal population for the study because they undergo routine blood draws monthly — presenting few pandemic-related challenges. Additionally, COVID-19 risk factors "are the rule rather than the exception in the US dialysis population," researchers…
Sophie Lewis
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