Give five points on effects of parasite on the host. 5 marks.
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Five points on Effects of parasite on the Host
1.Wasting (cachexia, spoliatrices)
African trypanosomiasis and leishmaniasis may lead to severe loss of weight in both animals and man.
2.Superinfections
In the case of (muco) cutaneous leishmaniasis ulcerations may lead to superinfections with bacteria
3.Production of toxic compounds
It is thought that the African trypanosome, when in the central nervous system, produces aromatic amino-acid analogues that may influence brain function.
4.Immunodepression
Malaria, bilharziosis, etc., lead to a certain degree of immune suppression which renders the infected host more susceptible to other diseases.
5.Allergic reactions
In the case of onchocerciasis (river blindness) the presence of the filarial worms under the skin may lead to depigmentation due to allergic reactions.