×
Newsmax TV & Webwww.newsmax.comFREE - In Google Play
VIEW
×
Newsmax TV & Webwww.newsmax.comFREE - On the App Store
VIEW
Skip to main content
Tags: Virus Outbreak | Testing | COVID

FDA: Take 3 Home Tests If Exposed to COVID to Boost Accuracy

a hand holding a rapid covid test
(Dreamstime)

Thursday, 11 August 2022 04:15 PM EDT

If you were exposed to COVID-19, take three home tests instead of two to make sure you’re not infected, according to new U.S. recommendations released Thursday.

Previously, the Food and Drug Administration had advised taking two rapid antigen tests over two or three days to rule out infection. But the agency says new studies suggest that protocol can miss too many infections, and could result in people spreading the coronavirus to others, especially if they don't develop symptoms.

The new guidance applies to people without symptoms who think they may have been exposed. People with symptoms can continue using two tests spaced 48 hours apart.

Thursday's update reflects the evolving understanding of the accuracy of antigen tests, which are less sensitive than laboratory tests but have become the standard testing approach due to their speed and convenience. Instead of detecting the coronavirus itself, they detect protein traces, known as antigens, similar to rapid flu tests.

Health officials have repeatedly cautioned that the tests can give false negatives if taken too early. The Centers for Disease Control and Prevention recommends people without symptoms wait five days after an exposure. That's because it generally takes several days before the antigens reach levels detectable via testing with a nose swab.

All 22 home antigen tests on the U.S. market were authorized for emergency use based on preliminary data, while companies and researchers gathered more definitive metrics on their accuracy.

The FDA said its latest decision reflects new information on the accuracy of antigen tests. In a government study, adding a third test improved accuracy from 62% to 79%.

© Copyright 2022 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.


US
If you were exposed to COVID-19, take three home tests instead of two to make sure you're not infected, according to new U.S. recommendations released Thursday.
Virus Outbreak, Testing, COVID
265
2022-15-11
Thursday, 11 August 2022 04:15 PM
Newsmax Media, Inc.

Sign up for Newsmax’s Daily Newsletter

Receive breaking news and original analysis - sent right to your inbox.

(Optional for Local News)
Privacy: We never share your email address.
Join the Newsmax Community
Read and Post Comments
Please review Community Guidelines before posting a comment.
 
TOP

Newsmax, Moneynews, Newsmax Health, and Independent. American. are registered trademarks of Newsmax Media, Inc. Newsmax TV, and Newsmax World are trademarks of Newsmax Media, Inc.

NEWSMAX.COM
America's News Page
© Newsmax Media, Inc.
All Rights Reserved
Download the NewsmaxTV App
NEWSMAX.COM
America's News Page
© Newsmax Media, Inc.
All Rights Reserved