Germs are everywhere -- in the air, water, soil, and even on you. While many germs are harmless, some may trigger infections that can make you sick. When germs invade your body and multiply, this ...

This week, the CDC modified its definition of direct contact for COVID-19 from 15 continuous minutes to 15 accumulated minutes within a distance of six feet or less. Should we consider this change in ...

The term modes of transmission refer to how an infectious agent, also called a pathogen, can be transferred from one person, object, or animal, to another. Viruses, bacteria, parasites, or fungi can ...

A communicable disease is one that spreads from one person or animal to another or from a surface to a person. They are the result of pathogens, such as viruses and bacteria. Communicable diseases ...