What are germs?

Germs are microscopic, living organisms that can pervade the body and cause infections such as fevers, vomiting, rashes, and coughing. There are four major types of germs: bacteria, viruses, fungi, and protozoa. Germs are generally spread from person to person by sneezing, coughing, and sometimes by sweat and saliva. The Centers for Disease Control and Prevention report that some viruses and bacteria can live two hours or longer on the surface of cafeteria tables, doorknobs, and desks.

Fight germs