I just got back from the doctors ... strep. I asked how contagious it was. It is very contagious. It is not airborne, but sneezing, couging, etc. near people can cause the virus to be spread. Sharing utensils, cups, etc. can cause it to be passed, touching something that a person with strep has touched, then putting your hand to your mouth unknowingly can also cause it to be passed.