Nov 3 (Reuters) — The U.S. Food and Drug Administration said on Tuesday it is alerting clinical laboratory staff and healthcare providers that false positive results can occur with COVID-19 antigen ...
The U.S. government is mailing out another round of free COVID tests to households that sign up. Older COVID tests still may be in your cupboard and OK to use, but you must verify the test’s ...
You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen ...
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