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A new study suggests that nose swabs alone might not properly detect Omicron variant in the early days of Covid-19 infection, and may need saliva for rapid tests. However, some experts disagree to this concept.
Rapid COVID-19 tests that use nose swabs alone might not pick up Omicron in the early days of infection, a new study suggests – but experts don't agree on whether you should also swab your throat.
Nose-only tests didn't detect Omicron for one to two days after initial infection, a study found. Experts disagree about swabbing your throat too.