There are a few different types of tests for COVID-19. Currently the most common is a PCR test, which detects genetic material from the virus. PCR tests are great because they are highly specific - they have a very low rate of false positives. If the test is positive, you can be certain you have COVID-19. But the test only works on patients who are sick and still have the virus in their body. What if you want to know if someone had COVID-19 in the past? That's where antibody tests (also known as serology) comes in. For more details, keep reading.
A blog answering common questions about SARS-CoV-2 (aka Coronavirus) and the disease it causes, COVID-19. I'll be focusing on questions that I have personally had difficulty finding the answer to. Disclaimer: The COVID-19 pandemic changes rapidly. I can only guarantee correct information at the time of publication, though I will try to keep things up-to-date. If you need medical advice please contact your medical provider.