COVID-19 diagnostic testing - Mayo Clinic
https://www.mayoclinic.org/tests-procedures/covid-19-diagnostic-test/about/pac-20488900
Web ResultFor a COVID-19 diagnostic test, a health care professional takes a sample of mucus from your nose or throat, or a sample of saliva. The sample needed for diagnostic testing may be collected at your doctor's office, a health care facility or a drive-up testing center. Nose or throat swab.
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