'''Incubation''' period is the time from contact with infectious agents ([[bacteria]] or [[viruses]]) to onset of [[disease]].<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#i</ref>
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'''Incubation''' period is the time from contact with infectious agents ([[bacteria]] or [[viruses]]) to onset of [[disease]].<ref>https://www.cdc.gov/vaccines/about/terms/glossary.htm#i</ref>