The Different COVID-19 Tests, Explained
by Rachel Fairbank on Vitals, shared by Rachel Fairba from Lifehacker on (#51SCM)

There's a lot of talk about tests for COVID-19, as well as a lot of confusion about what the results might mean. If someone tests negative for COVID-19, does that mean they aren't sick? If someone tests positive for antibodies against COVID-19, does that mean they are immune?