Malaria presentation

Apr 8th, 2015
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Malaria presentation Malaria is a disease caused by the protozoanparasites of the genus Plasmodium. The 4 species that commonly infect man are:Cont,SpeciesMajor featuresP. falciparum The most important species as it is responsible for 50% of all malaria casesworldwide and nearly all morbidity and mortality from severe malaria Found in the tropics & sub-tropicsP. vivax The malaria parasite with the widest geographical distribution Seen in tropical and sub-tropical areas- esp indian continent but rare in Africa Estimated to cause 43% of all malaria cases in the worldP. ovale This species is relatively rarely encountered Primarily seen in west Africa, especially, the west coast, but has been reported inSouth America and AsiaP. malariae Responsible for only 7% of malaria cases Occur worlwide but is rare.Malaria endemicity. Endemicity refers to the amount or severity of malaria in anarea or community. Malaria is said to be endemic whenthere is a constant incidence of cases over a period of manysuccessive years.Endemic malaria may be present in various degrees.Recognised categories of endemicity include :A. Hypoendemicity - little transmission and the diseasehas little effect on the population.B. Mesoendemicity - varying intensity of transmission;typically found in the small, rural communities of the subtropics..C. Hyperendemicity - intense but seasonal transmission;immunity is insufficient to p

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