supergirl: the schools is Israel do not check the students, that’s why it’s much more common.
I heard synthetic vinegar (in Israel that’s the clear one as opposed to the yellow one) keeps the lice away. Also, combing through the hair with a lice comb and conditioner 2x a week will ensure that even if your child catches one or two it will be out before it can spread and reproduce.
Good Luck! (One of the lesser pleasant things abt living in Israel, nothing to do about it.)