I heard that this was going to be on the news tonight around 530pm, but I changed the channel so never heard what it was about. And now, too lazy to actually look it up.
But is that total, or each way?
I think it sounds like more than it is. How many bacteria are exchanged during a 5 minute bathroom break for example? or a 2 second handshake?
Edit: added spoiler (although probably not necessary lol)