Some people mistakenly look at the home tests “like a get-out-of-jail-free card,” said Dr. Subscribe to KFF Health News' free Morning Briefing. While home antigen testing remains a useful - and underutilized - tool to curb the pandemic, experts say, it is often misused and may provide false confidence. Despite that, a few brands are sold one to a box and, with the tests sometimes expensive and in short supply, families are often relying on a single screening. Testing may come either too soon, before enough virus is present to detect, or too late, after a person has already spread the virus to others.Īnd most rapid tests, even according to their instructions, are meant to be used in pairs - generally a day or two apart - for increased accuracy. Like many other Americans, Justo’s family learned the hard way that a single negative result from an at-home rapid test, which takes about 15 minutes, is no guarantee that a person is not ill or carrying the virus. And many took solace in negative results from rapid covid-19 tests taken a few days before the 35-person indoor gathering in South Florida to make sure no one was infectious.īut within a week, Justo and at least 13 members of her extended family tested positive for covid, with many feeling typical symptoms of an upper respiratory virus, such as a sore throat and a runny nose. They quarantined and used masks in the days leading up to the event. Before the celebration, family members who were eligible were vaccinated and boosted.
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