Do you mean to say that you are not vaccinated????
Well, I must say, I'm shocked. Here in the UK, people who work in the relevant fields will get free hep A, B and C vaccinations. Anybody else can still get them, but will have to pay. Speak to your employer/director of studies and see what he or she recommends.
Currently I am a student and I am going through the process of getting the series of shots, the school make it mandatory that you get the series and a tb skin test. However, if you get the flu shot, you can still get the flu. So my question is to the board, "How can you prevent getting the virus?"