Besides, receiving by intinction gives one that bit of alcohol that kills germs. It’s not the “lipstick on the cup” deal.
Of course this is irrelevant. The Sacrament is the Body and Blood of our Lord God and Saviour Jesus Christ. Is it possible that during his earthly life when he healed lepers one could have ever believed that the next person he touched would be infected by cross-contamination? The suggestion would be beyond absurd frankly. The Lord's touch heals; it does not infect. The idea that the Body and Blood of God Almighty could be a disease vector is beyond impossible. Alcohol never enters into it.
>>Of course this is irrelevant. <<
God gave me a brain. I use it. Christ is complete in the host. He isn’t splintered. No need to take a risk of infection.
>>Is it possible that during his earthly life when he healed lepers one could have ever believed that the next person he touched would be infected by cross-contamination? <<
I’m not really sure “one” knew about germs in Christ’s time. Perhaps Christ washed his hands. The Priest does.