Add Yahoo as a preferred source to see more of our stories on Google. New research suggests Omicron may be easier to detect in saliva than nasal samples. Some experts recommend swabbing your throat ...

(CNN) — The US Food and Drug Administration is cautioning against using self-collected throat swabs for Covid-19 tests and says people should use the tests as instructed. “FACT: When it comes to ...

Preliminary evidence suggests that rapid tests like Abbott BinaxNOW and Quidel QuickVue struggle to detect the omicron variant during an individual’s first few days of infection. AzmanL via Getty ...