title: The ecological approach to the study of zoonotic diseases.
authors.affiliation: Viral and Rickettsial Disease Laboratory California State Department of Public Health Berkeley 94704, USA.
authors.forename: H N
authors.initials: HN
authors.lastname: Johnson
mesh_terms: D000818:Animals; D000835:Animals, Wild; D004197:Disease Reservoirs / Q000662:veterinary*; D004463:Ecology; D017753:Ecosystem; D006801:Humans; D015047:Zoonoses / Q000635:transmission