![]() ![]() To learn more about the difference between PCR and rapid antigen tests and when each is most appropriate, visit the COVID-19 Tests page on the UW Environmental Health & Safety website. Rapid antigen tests are best for identifying individuals with symptoms and in high-transmission settings. PCR tests are best for early diagnosis of infection, even when a person does not yet have any symptoms. ![]() Antigen tests return results much faster than PCR tests (most in just 15 minutes). Rapid antigen tests are less sensitive than PCR tests and may return false negative results when a person is not yet showing symptoms or is in the first few days of their infection. ![]() PCR tests are highly sensitive, and the results are very reliable, meaning that false negative and false positive results are uncommon. There are two main types of COVID-19 test: PCR tests and rapid antigen tests. Students in on-campus residential communities can find their building addresses on the Housing & Food Services website for placing these orders.
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