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Factors Of Parasitic Virulence
Part 1 of Paper
....me 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 hori.... Part 2 of Paper
....ion.
Incongruently evolved parasite-host associations are characterized by
high virulence, while congruent evolution may result in reduced
virulence (Toft et al. 1991). Parasites transmitted vertically (from
parent to offspring) tend to be less virulent than parasites
transmitted horizontally (between unrelated individuals of the same or
different species). Studies in which virulence is shown to increase
during parasite-host interaction, as in Ebert's (1994) experiment with
Daphn.... |
| Number of words: 2924 - Approximate pages: 11 |
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