Antigen Tests : Real World Data - Your Local Epidemiologist
▻https://yourlocalepidemiologist.substack.com/p/antigen-tests-real-world-data
This study tells us that we need to be super careful when using rapid tests in the first few days of exposure or infection.
To get the most from your rapid test, wait at least 48 hours after symptoms and 5 days after exposure before taking an antigen test. If you’re negative, test again 24 hours thereafter.
You can certainly test sooner, but any negative results will be unreliable.
A positive antigen test result, on the other hand, is very reliable right now, especially after exposure or with symptoms.