There are high hopes for these antibody tests, but infectious disease experts warn against shaping policy or changing behavior based on any single report. antibodytests
After hearing for months about serious access issues involving tests that diagnose COVID-19 based on swabs from the nose or throat, Americans are being inundated with reports about promising new tests that look for signs of infection in the blood.
"There is currently no evidence that people who have recovered from COVID-19 and have antibodies are protected from a second infection," the agency wrote in a scientific brief. "Some of them have sensitivities that are quite poor," he said."You may even miss some infected people completely." Scientists still know too little about whether antibodies to COVID-19 convey immunity that could allow people to put away masks and halt social distancing, said Dr. Mary Hayden, director of the division of clinical microbiology at Rush University Medical Center in Chicago.
Concerns about the validity of the tests have cast a shadow on several recent reports aiming to quantify the spread of the virus in specific regions. Last week, New York Gov. Andrew Cuomo revealed the results of a serological survey that suggested thathad been infected with the coronavirus. Statewide, the figure was 13.9%, according to the study of 3,000 New Yorkers in 19 counties who were recruited at grocery stores.
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