the virus goes in and out of people's faces. it hangs in the air for a little bit, but not for long and it doesn't go very far, so it mostly lands on things and then is on those things. you touch things with your hands and get virus on them and then touch your hands to your face and the virus goes into your face and now you're a virus factory and you pump virus out of your face and it lands on everything around you including your hands and you touch things with your hands including other people's hands or things that other people touch with their hands and then they touch their hands to their faces and then they're virus factories, etc.