Ok, so i have read on here many times that you have to actually ingest so many particles of the virus in order to actually catch it. So does that mean you have to eat it? Swallow it? Is that true in all cases? I am wondering because I caught a sv from my baby once and then my other 2 boys came down with it 2 days after me and i didnt make them food or touch them. I didnt V at all, I took antiemetics and although my stomach hurt really bad i didnt V. So they never came in contact with the V that way. I caught it I am sure from changing the baby's diaper and him spitting up on me. But how did the other 2 boys get it? And my live in helper caught it as well. She was taking care of the baby and other 2 boys while i was sick. She was the last one to catch it. She didnt clean up after the boys when they got sick. The baby was over it when I caught it. So if she was exposed it was at the same time i was. Just wondering what the real deal is. Are there any forms of SV that are airborne?