I think one of my dogs may have distemper. She has white discharge coming from the corners of her eyes and her nose is runny. Could this be a symptom of anything else? I'm going to get her to a vet ASAP but I also need to know how long vaccinations for distemper last because my husky, the one most of you really like here, has been vaccinated but it's been a few years ago. Aside from the discharge, my dog is acting normally.