Characteristics of host-parasite interactions that promote parasite persistence.
University of Pennsylvania, School of Veterinary Medicine, New Bolton Center, Kennett Square, Pennsylvania 19348.
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D002353:Carrier State; D003141:Communicable Diseases / Q000382:microbiology* / Q000469:parasitology* / Q000635:transmission; D006790:Host-Parasite Interactions; D006801:Humans; D018445:Infectious Disease Transmission, Vertical; D015233:Models, Statistical