I have to say "touch wood" that our kids don't get sick too often but I know what you mean by the parents just letting them come over when only just recovering. My BIL and his family are always sick, but that could be an excuse to not see us they had a new baby the begining of december and the last time I saw him was christmas, I call to arrange something and the phone doesn't get answered even at 7pm, they don't phone us either they ring hubby sister and ask how we are?