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None Provided49 Parasites and their Virulence By: Terry ABSTRACT hence do some parasites polish the army they depend upon melodious composition others coexist with their forces? Two prime factors decide parasitic acerbity: the port in which the parasite is transmitted, and the evolutionary narrative of the parasite and its host. Parasites which render colonized a hot host species tend to be more than virulent than parasites which hold back coevolved with their hosts. Parasites which be transmitted horizontally tend to be more virulent than those transmitted vertically.

It has been sour that parasite-host interactions inevitably evolve toward glower virulence. This is contradicted by studies in which virulence is conserved or increases over time. A model which encompasses the variableness of parasite-host interactions by synthesizing spatial (transmission) and temporal role (evolutionary) factors is examined. Lenski and whitethorn (1994) and Antia et al. (1993) predict the inflexion of vi...If you want to get a fully essay, order it on our website: Orderessay

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