Adapted from the MD Mama blog on Boston.com.

These days, with all the sickness going around, and with all the fright about the flu, it’s a question parents regularly face: When should you keep your child home from school? It’s not usually a straightforward question, either. For most families (mine included), keeping a kid home means missing work — and, although our families are of course our first priority, missing work can be hard. Missing school isn’t great for learning, either.