White House coronavirus task force member Dr. Anthony Fauci is urging caution about relying on coronavirus antibody tests to determine whether someone who has recovered from the illness is immune.
Fauci said on “Good Morning America” that “we still have a way to go” with antibody, or serology, tests, which check for proteins in the immune system through a blood sample.
The presence of proteins means a person was exposed to the coronavirus and developed antibodies against it, which may mean they have at least some immunity.
Health officials suggested that tests could be used as a way to help determine when to reopen communities.
“The problem is that these are tests that need to be validated and calibrated, and many of the tests out there don’t do that. So even though you hear about companies flooding the market with these antibody tests, a lot of them are not validated,” Fauci said.
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