Hi
I am over fifty, and remember all my shots, vaccinations, novacaine at the dentists, and so on, were with NON-disponsable syringes. real shots with real, reuseable and re-used needles.
Disposables did not come into wide use until the HIV alerts of the 1980's.
Of course the re-used needles were supposed to be sterilized between uses, but deficiencies in these procedures almost certainly happened. So, I'd believe that this indeed might be a risk factor.
I know of only one published example--the group of people in Ireland who were infected through contaminated gamma globulin injections.
So, you never know, eh?
sean
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