Assertion: pathogen | /r/HasProperty | followed by dissemination
Facets:
value: within the new host population
type: OTHER
Source sentences:
text: 1) Introduction of the agent into a new host population (whether the pathogen originated in the environment, possibly in another species, or as a variant of an existing human infection), followed by 2) establishment and further dissemination within the new host population ( adoption ) (4).