CDC Categories of COVID-19 Testing

Testing individuals with signs or symptoms consistent with COVID-19 Testing asymptomatic individuals with recent known or suspected exposure to SARS-CoV-2 to control transmission Testing asymptomatic individuals without known or suspected exposure to SARS-CoV-2 for early identification in special settings Testing to determine resolution of infection Public health surveillance for SARS-CoV-2 *Ultimate decisions about testing are …

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Antibody (Serology) Testing

Venous blood sampling for remote infection Detection of person’s immunity against the SARS-CoV-2 virus Surveillance: proportion of a population previously infected with SARS-CoV-2 Often used in conjunction with viral detection tests Test results dependent on patient’s immune response and time since infection

Viral Testing – Antigen Test

Respiratory sampling for current/active infection Detects viral nucleocapsid protein from SARS-CoV and SARS-CoV-2 Immunoassay technology, quick processing time A positive antigen test is highly accurate, but there is a higher chance of false negatives versus the PCR test