coronavirus test kits supplier
"Throat swabs are not very effective and there are molecules that sometimes interfere with the test and make it invalid," Fichtenbaum said. "Just the nose."
The self-administered COVID-19 antigen tests are designed to collect viral proteins. There are saliva tests, but the most common COVID-19 rapid, home tests are nasal swabs. Instructions provided with the tests specify how to use them.
Another common question is when to administer a home COVID-19 test. Fichtenbaum says it is best to wait at least a couple of days after the onset of symptoms.
Fichentbaum explained: "The rapid tests appear to be most effective on those who are sick, two to four days into symptoms." If you're not feeling sick, the test's sensitivity is reduced.
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