\The question I ask of people who receive in the hand is this: what do you do with the crumbs or specks of the Sacred Host that get left in the palm of your hand?\
The few times I have received in the hand, I have always checked my palm for crumbs and always licked it after swallowing the Holy Body lest there were any I did not see.
And while I do not believe that H1N1, or indeed any pathogen, can be transmitted by the Holy Eucharist, regardless of how it is received, should I live under the jurisdiction of a Bishop who has required Communion in the hand pro tem, I would yield to the consciences of weaker brethren and do so.