I agree but then we don't know each individual child's circumstances. The children who have unfortunately become really sick could have been those children with paranoid parents who have been kept away from germs and bugs.That’s why I can’t see how it could be that if it was the case of people being extra careful I’d agree it’s a possibility but I know it wasn’t the case here.
It could also be something to do with the flu vaccine as well, as this seems to have kicked off since children were given it.
There are so many possibilities.