COVID question? ❗️🦠

Angels Mommy

My brother currently has COVID and is isolated in the other room.

Anyways my question is, he started his first symptom on January 25 (Monday) and tested on January 27 (Wednesday) which he came out positive.

1) What we want to know is, when does he retest again?

2) And when does his quarantine start, the day he got a positive test or the day he started symptoms?