Pathogen

A pathogen is an organism that causes disease.[1] The most common pathogens are bacteria (such as E Coli), viruses (such as the influenza virus), fungi(such as Ringworm) and protozoa(such as Giardia).

## References[edit]

1. ↑ Wile, Dr. Jay L. Exploring Creation With General Science. Anderson: Apologia Educational Ministries, Inc. 2000