PCR vs. Antigen COVID Testing: What You Need to Know

COVID testing confusion

PCR or antigen: Which COVID-19 test is right for you?

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Can a person test negative and later test positive for COVID-19? | Whether you test positive or negative for COVID-19, you should still take preventive measures to protect yourself and others. Learn more.... | By CDC | Facebook

Should You Retest After Testing Positive for COVID-19—And if So, When?