Factors of Parasitic Virulence
Why do some parasites kill the host they depend upon while
others coexist with their host? Two prime factors determine parasitic
virulence: the manner in which the parasite is transmitted, and the
evolutionary history of the parasite and its host. Parasites which
have colonized a new host species tend to be more virulent than
parasites which have coevolved with their hosts. Parasites which are
transmitted horizontally tend to be more virulent than those
transmitted vertically. …
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…and Host Behaviour. Barnard, C. J. and Behnke, J. M. Eds.
Taylor & Francis. London.
Read, A. F. and Harvey, P. H. 1993. The evolution of virulence.
Nature. 362:500-501.
Toft, C. A. and Aeschlimann, A. 1991. Introduction: Coexistence or
Conflict? pp. 1-12 In Parasite-Host Associations: Coexistence or
Conflict? Oxford University Press. Oxford.
Wise, L. A. (1990) Small Animal Medical Nursing pp. 226-261 In
Clinical Textbook for Veterinary Technicians, Second Edition.
McCurnin, D. M. Ed. W. B. Saunders Company. Philadelphia.
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