Parasites And Their Virulence

Parasites and their Virulence ABSTRACT Why do some parasites overcome the host they depend upon while others coexist with their host? deuce 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 sum up a new host species pitch to be more virulent than parasites which have coevolved with their hosts. Parasites which are transmitted horizontally play to be more virulent than those transmitted vertically.

It has been assumed that parasite-host interactions inevitably evolve toward lower virulence. This is contradicted by studies in which virulence is cargo deck or increases over time. A model which encompasses the variability of parasite-host interactions by synthesizing spatial (transmission) and temporal (evolutionary) factors is examined. Lenski and May (1994) and Antia et al. (1993) predict the modulation o...If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay