Antibody tests for Covid-19 are wrong up to half the time, CDC says
CNN, May 26, 2020
by Maggie Fox
Antibody tests used to determine if people have been infected in the past with Covid-19 might be wrong up to half the time, the US Centers for Disease Control and Prevention said in new guidance posted on its website.
Antibody tests, often called serologic tests, look for evidence of an immune response to infection.
“Antibodies in some persons can be detected within the first week of illness onset,” the CDC says.
They are not accurate enough to use to make important policy decisions, the CDC said. READ MORE
(Editor’s note: The Lyme community has long decried the inaccuracy of antibody tests for Lyme disease. The CDC has always dismissed those concerns as invalid.)
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