I ask following an incident last week and a conversation with the nursery manager this morning.
Apparently, our nursery has recently relaxed the '48 hours away after last episode' to waiting for 2 occasions of sickness or diahorrea before calling parents/asking parents to keep their child off for 48 hours after last episode. This is because there were several occasions in the winter when babies were sent home having had diahorrea and it was just because they were teething, and were absolutely fine the next day.
This has happened with both of my kids and, as a working parent, it's a complete PITA but I've always seen it as one of the hassles of nursery based care.
I really object to the idea that a child who has vomited will be kept in the nursery setting to see if he/she vomits again or if a child has vomited in the night they can be brought in and pass it on to everyone else before they vomit up their breakfast and their parent gets called.
Do most nurseries have very tight rules about this, or is this '2 voms and you're out' approach the norm?