things happeded yesterday

I got up very early yesterday morning because I had to the health center for MMR shot. Although I am not very clear what is MMR, it seems that I have to get this because the New York public health law had required it. The professor said if we donnot have this immunization, the university will evict us. After I arrived the health center at Junction Blvd, I found lots of international students and south American immigrants there. A doctor described what is MMR to us, then I realized that I had injected the mumps and rubella in China when I was a children. I told it to my doctor, but she asked me to give her evidence, otherwise I should injected it, and she also told me that it will be OK if I inject the mumps and rubella again . So finally I followed her advise. After I finished my shot, I asked the nurse where to pay the charge. I was surprise to heared it is free. That's great!!! I had heared it is very expensive here for shot. It seems I have saved my money:)