Noun
autoinfection (countable and uncountable, plural autoinfections)
English Wikipedia has an article on:autoinfectionWikipedia
The infection of a primary host with a parasite, particularly a helminth, in such a way that the complete life cycle of the parasite happens in a single organism, without the involvement of another host.
Another consequence of autoinfection is the autoinfective larvae can carry gut bacteria back into the body. Source: Internet
To date, occurrence of autoinfection in humans with helminthic infections is recognized only in Strongyloides stercoralis and Capillaria philippinensis infections. Source: Internet
Strongyloidiasis for example involves premature transformation of noninfective larvae in infective larvae, which can then penetrate the intestinal mucosa (internal autoinfection) or the skin of the perineal area (external autoinfection). Source: Internet
In the case of Strongyloides, autoinfection may explain the possibility of persistent infections for many years in persons not having been in an endemic area and of hyperinfections in immunodepressed individuals. Source: Internet