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Factors Of Parasitic Virulence
Beginning of paper
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 ....
Middle of paper ....tically (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
Daphnia magna, necessitate a synthesis of traditionally.... |
Word count: 2924 |
Page count: 11 |
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