Recurring Strep Throat

I just had strep throat 3 weeks ago, it cleared up with antibiotics, and now I have it again. Before that I had it this last March and then in April of the previous year. I love GFE (making out passionately with clients) but this is the only thing I can think of exposing me as I'm a huge homebody and not sexually active outside of work. Different clients before symptoms appeared. Anyone else running into this issue? I'm staying home and on antibiotics, of course. Such a drag!