Feline sneezing can happen for a lot of reasons. Sometimes cat sneezing can be a sign of cat health problems, but often it's nothing to worry about. This page goes through the different reasons why cats may sneeze, and tells you what you should do if your cat has started to sneeze a lot and you're not sure why.
Replies to: Summer Internship Length? I don't know what specific firms policies are on this sort of thing but summer internships typically last 10 weeks and I don't think they will want to bring you on if you're going to be gone for 4 of those weeks.
What the law says about the length of an internship: maximum 12 months, no restrictions on number of internships or extensions, suspensions are possible. The information you need to make an informed choice. However, there are no restrictions on the number of internships someone can carry out during a course of study.