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# FDA Monitoring Virus Variants
- URL: https://www.fdaweb.com/fda-monitoring-virus-variants/
- Published: 2021-01-26T12:00:00.000Z
- Updated: 2026-09-14T16:44:15.000Z
- Author: David McFarland
- Tags: Biologics, Drugs, #legacy-id-D5148520

FDA is continuing to closely monitor the various identified variants of the virus that causes Covid-19 and also monitoring for emerging variants, according to a series of 1/25 [Tweets](https://twitter.com/DrWoodcockFDA/status/1353857669979897857?ref=fdaweb.com) by FDA acting commissioner **Janet Woodcock**.

Woodcock says the agency “will continue to factor in newly emerging information in light of our role in regulating diagnostics, therapeutics, and vaccines to fight Covid-19.”

She says FDA is assessing the impact of new virus strains on authorized products and is working with medical product sponsors to provide information on evaluating any potential impact that they or any other variants have on product effectiveness.

“At this time,” Woodcock states, “available information suggests that currently authorized vaccines remain effective in protecting the American public against current strains of Covid-19.” She says the agency is already thinking about developing a potential pathway if changes need to be made to authorized Covid-19 vaccines or other products based on information on emerging variants.