| − | Exposure in medicine means contact with infectious agents ([[bacteria]] or [[viruses]]) in a manner that promotes transmission and increases the likelihood of [[disease]]. | + | Exposure in medicine means contact with infectious agents ([[bacteria]] or [[viruses]]) in a manner that promotes transmission and increases the likelihood of [[disease]].<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#e</ref> |