The Omicron variant is demonstrating the value of rapid antigen testing (self-swab home testing kits) to determine a person’s infectiousness, a key factor in reducing transmission between individuals. While the PCR test remains the gold standard to diagnose and/or rule out COVID-19 with a single test, rapid antigen testing provides another critical risk management tool with the Omicron variant. If you take a rapid antigen test (home test) and it is positive, you should consider yourself positive for COVID-19 and follow CDC isolation protocols.