Why do COVID-19 PCR and antigen tests produce different results? – CBS News

Why do COVID-19 PCR and antigen tests produce different results?  CBS NewsFrustrated They Can’t Get Covid-19 Tests, Americans Go About Their Lives  The Wall Street JournalStaffing a concern as COVID-19 test sites struggle to meet high demand  FOX 13 News UtahThe unlikely place to find at-home COVID-19 tests  CBS NewsWhen should you take a COVID-19 rapid test if you only have one? Experts suggest waiting for symptoms or hours before your next party.  Yahoo News