Hi, Jenna, and welcome to the forum. I would say that your risk is minimal; however, the best thing is to have a test for Hep B, Hep C, and HIV. As an inner-city school worker, you may have already been immunized for Hep B. If so, you don't need that test. It's a simple blood test for all 3, so be sure to give yourself some peace and have them done. If you have positive B or C results, come on back here for support and information.
Hugs,
Connie