Assertion: flea's host | /r/HasProperty | uninfected
Facets:
Source sentences:
text: The foregut ( proventriculus ) of this flea is blocked by abiofilm; when the flea attempts to feed on an uninfected host is regurgitated into the wound, causing infection.
text: The foregut of this flea is blocked by a biofilm ; when the flea attempts to feed on an uninfected host from the foregut is regurgitated into the wound, causing infection