Changes

An [[organism]] that causes [[disease]].<ref>Wile, Dr. Jay L. ''Exploring Creation With General Science''. Anderson: Apologia Educational Ministries, Inc.  The most common pathogens are [[bacteria]](such as [[Escherichia coli|E Coli]], [[viruses]](such as the influenza virus), [[fungi]](such as [[Ringworm]]) and [[protozoa]](such as [[Giardia lamblia|Giardia]]).  

A '''pathogen''' is an [[organism]] that causes [[disease]].<ref>Wile, Dr. Jay L. ''Exploring Creation With General Science''. Anderson: Apologia Educational Ministries, Inc.  The most common pathogens are [[bacteria]](such as [[Escherichia coli|E Coli]], [[viruses]](such as the influenza virus), [[fungi]](such as [[Ringworm]]) and [[protozoa]](such as [[Giardia lamblia|Giardia]]).  

2000</ref>

2000</ref>