FDA: Rapid Antigen Tests May Be Less Effective at Detecting Omicron
The FDA stopped short of telling people to avoid using antigen tests and did not specify the brands of tests used in the study. The agency also emphasized the findings are based on laboratory data and not the more reliable clinical study evaluations, which are currently ongoing.
But, the CDC said Wednesday that fewer than 1% of the U.S. COVID-19 cases genetically sequenced last week were the omicron variant; the delta variant accounted for more than 99%, reducing concerns about currently authorized antigen tests missing an infection. It comes a day after the agency significantly slashed estimates of the percentage of new cases linked to the omicron variant.
In an interview with NBC's"TODAY" show, CDC Director Dr. Rochelle Walesnky said while antigen tests may not perform as well as it did for other variants,"it's still picking up quite a bit of infection" and the agency encourages its use.
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