Footnote
a Germs, or microorganisms, are living things so small that you cannot see them with your naked eye. They include bacteria, viruses, and parasites. Some microorganisms are beneficial, but harmful ones can hurt or even kill you.
a Germs, or microorganisms, are living things so small that you cannot see them with your naked eye. They include bacteria, viruses, and parasites. Some microorganisms are beneficial, but harmful ones can hurt or even kill you.