autovaccination
au·to·vac·ci·na·tion
noun \ˈȯt-ō-ˌvak-sə-ˌnā-shən\Definition of AUTOVACCINATION
: vaccination of an individual by material from the individual's own body or with a vaccine prepared from such material
Seen & Heard 
What made you want to look up autovaccination? Please tell us where you read or heard it (including the quote, if possible).
