| − | An inapparent infection is the presence of infection without symptoms. It is also known as subclinical or asymptomatic [[infection]].<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#i</ref> | + | An inapparent infection is the presence of infection without symptoms. It is also known as subclinical or asymptomatic or hard to find. [[infection]].<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#i</ref> |