So when they put on the earring it's no different than holding it
in their hands.
I have a comment on the above as well as one other comment to
Assuming the person has a non infected healed ear hole it's probably
cleaner than their hands, especially if they have been handling items
at other booths that have been handled by others...
The other comment is in reference to Alcohol as a disinfecting
agent. The studies are all based on a certain concentration and
certain time interval in contact with a certain type of alcohol. If
one takes the worse case situation, a simple wipe may not do it. Even
medical swabs call for the nurse to scrub the skin and to leave a
residual layer of alcohol behind, which is why they seem so wet when
you go to get a blood test. If someone buys some swabs and leaves
them in a kit for a year, even in those 'sealed' foil packets they
will have lost a sizable proportion of the available alcohol. The
medical practice also assumes that you are relatively immune to your
own bugs so if you get a small dose that remains alive it will be
dealt with by your body. The same is not necessarily true of a
If one wanted to be completely sure, get a FDA approved "cold
sterilizing agent" and follow their instructions.
But PS I agree with Daniel, the risk is really low... but if you
live in a place like Fl., (which a nurse acquaintance of mine who
does live there, calls it the "Sue state") would you want to take the
chance that some idiot tries on 50 sets of earrings gets infected and
decides that since you gave them your card and it is the only one
that they can find at the moment that it must have been your
earrings, and conveniently forgets the other 49 moments after
disgusting (spelling deliberate) with a commission lawyer...