How did they determine your child had allergies? My husband is very worried that my son will have allergies. His youngest brother has them very bad and had to have shots as a child. I wasn’t allergic to anything air born as a child and no one in my family was either so I’m not sure how that works. I’m pretty sure the pneumonia was passed on to us since now My Dad has it and my Hubby and I are now coming down with it. But I’d since we have a lot of pets I’d like to know what to look for just in case.