I think the way to answer this is if you had 50 parakeets free Flying in the room next to you there is a health risk, if you had twenty cats in your house, yes there is a health risk, if you lived in a house with your family and twenty Cousins, there is a health risk. NO creature is not able to pass on a problem to people. BUT it only happens with poor Hygiene, poor care and no common sense. Your dog or cat are also able to get you sick if no common sense is used. IT is insane too say you can not catch something from them.... BUT there is more chance of you getting sick from your "visiting cousin" than the average Pigeon. I had a friend in the 70's catch "parrot fever" from a rare macaw, sorry can never spell that name, you know, the LARGE purple endangered kind. Begins with an "H" It can happen but i am more worried about "how old is that milk in the fridge?" JMHO Dave