If your LO had pneumonia how long were they sick? When could they go back to daycare?

LO had it once before, the antibiotics worked and I think she missed maybe two days of daycare. This time it didn't respond to antibiotics (probably viral) and I'm getting the impression I should be settling in for a long stint at home -- like 2-3 weeks. Of course LO's health in my priority but I'm trying to figure out what to do with my projects at work & family gatherings.