to be angry with parents who bring their children to the swimming pool with upset stomachs?

[CorporeSarnie]

DD (16mo) just got better from a bad cold a fortnight ago, back at nursery again. We took her swimming yesterday morning at local baths, last night she was off her food, then vomited all over her bed, then ours when I brought her in with us, then the nappies began this morning. I have no reason to suspect anything other than the swimming pool (she went on a bike ride with her dad on sat, & to my knowledge no other babies at her nursery have been sick). Am almost out of clean sleepsuits following vomiting and two leaky nappies, have had to do multiple loads of laundry already, and have had to stay off work to look after her.
AIBU to be wasting energy on being furious with the other people who decided that swimming with or just after a tummy bug wouldn't damage anyone else? There were tiny babies in the pool as well :( hope they're not poorly.

YANBU to be pissed and vent, YABU to waste so much time and energy on being furious because it's a waste of time and you don't know if it's true.

Tbh, she probably did get from nursery, a child probably had a bug and went straight in the next day during the 'two day after' period. That's how my friend, a teacher, always gets infected-minus one dramatic projectile vomiting. The amount of kids who admit they were ill the day before or whose parents admit that they, or their siblings were, in the aftermath but don't want to have to keep them ff for the two days or don't believe it's an issue. The nursery may not even know, my friend certainly didn't the first few times-she can now clock the ones who have been sick though and whose parents are sneaking them in.

I don't think it is fair to blame parents taking children swimming while ill as you do not know this is h case as it would have been very quick for the symptoms to start I would have thought. However, I do think some people just don't think. I overheard a grandmother telling ds1's teacher that her grandaughter was feeling tired and off colour (child was as white as a sheet and looked exhausted and ill) as she had been up half the night throwing up. Thank goodness the teacher was on the ball and sent the child home with the grandmother after informing her o the d and v policy.