I don't know if Federal duty is anything like Allegheny County but I was just excused from reporting two weeks ago because I had a cold. They aren't taking any chances with Covid these days. I had to fill out a medical questionnaire and I answered honestly - I did have symptoms on the list they provided but I didn't think I had been exposed to Covid and I hadn't tested positive. They excused me anyway. It's not totally honest if you were to do the same I guess but if it's a matter of a small fib and not having anyone to care for your baby I don't think many reasonable people would begrudge it.