When Big A and I got home from work last Tuesday evening, the Au Pair told us rather worriedly that Little A's front and back were covered in some sort of rash.
This was hot on the heels of an unexplained 24 hour fever two days previously. I checked the rash and checked the baby books, and it looked suspiciously like it could have been measles, german measles or roseola. Little A also had a cold, his eyes were bloodshot, and he had slightly soft stools in the days since the fever.
He never had his MMR injections, what with the whole autism-vaccination issue, so I worried it could be either of the measles, neither of which I've had, nor my Au Pair or Cook. (Big A phoned his mum, who said he'd had the measles as a child.)
Luckily, Little A's pediatrician was at the nearby hospital the following morning. We went for a visit, and she told us it was the least scary of the three - roseola. The rash would be gone in 2 days, and then he would no longer be infectious to other children below age 3. A good thing, since my mum's 60th birthday was that Saturday, and it would have hugely disappointed her if Little A had to miss the celebration.
While the rash was gone by Thursday and he was back in good spirits, though sleeping slightly longer at nap and nighttimes, I kept him home from school on Friday to be sure. Thankfully, he is back to normal, though he hasn't been back to school since then, which is a different story altogether.