Helps get rid of some germs that could cause disease or sickness.
That is a good answer, add a bit of your personal fears (don't share here) and it will be good.
Patients of hospitals with a high index of suspicion, and Healthcare providers that utilize needles ( primarily because blood from either can get into the wounds of one another).
Additionally I think servicemen are obligated to have one done on them. Additionally those who wish to donate blood are required to have a negative blood test.
It’s B because traveling isn’t important.
