Answer:
Viruses spread by go to someone and through that it will go to the other person.Hygience practices and vaccines are good to make us people to stay health and prevent from viruses.The vaccines can help our antibody to be strong so that no virus can get in.Antibiotics are design by using a good bacteria,using a new formalized bacteria that are strong enough to beat viruses.
Explanation:
That's only what I know.