AdSitePro (https://adsitepro.com)

Rapid Covid tests give many false negatives, but that might mean you're not contagious

Rapid Covid tests give many false negatives, but that might mean you're not contagious

Rapid Covid tests miss a lot of asymptomatic cases, but they're good at identifying when people have high viral loads, research suggests.

In early January, more than 700 Stanford University athletes took rapid Covid tests upon returning to the campus. Those who tested negative — and some who tested positive — were also given PCR tests.

The students were all participants in an experiment run by the Stanford University School of Medicine, which assessed the accuracy of BinaxNOW rapid tests.

The results, published Wednesday in JAMA Network Open, showed that the rapid tests caught 63% of positive cases, meaning they produced quite a few false negatives. The accuracy varied significantly depending on whether the infected athletes had symptoms. The tests caught 78% of symptomatic cases but 39% among asymptomatic athletes.

False positives weren't a problem though: The tests were accurate in nearly 100% of cases in which athletes did not have Covid.

White House ending Covid testing for international travelers arriving in U.S.June 10, 202201:10"I do think that the viral load is the big issue here," said Dr. Calvin Hwang, the study’s lead author and a clinical assistant professor at Stanford. Viral load refers to the amount of virus in a person’s body.

https://www.nbcnews.com/health/health-news/rapid-covid-tests-false-negatives-rcna33502


Post ID: 444138f8-ca80-4405-9612-10a15c7fe20f
Rating: 1
Updated: 1 week ago

Similar classified ads


Randy's other ads