I thought the same. Especially since a couple of visits ago to the hep, I asked if I should get my tetanus booster or wait till I stepped on a rusty nail. He said, wait. Then a couple of months later the hospital called and said it had been brought to their attention from Aetna that I hadn't had Hep A or B vaccination. I checked and hep's office said, must have! So I did. It went fine!
I still don't know about flu vaccines though as they said when I got sick, absolutely not!