Differential patterns of infection and disease with P. falciparum and P. vivax in young Papua New Guinean children.

There was highly significant spatial variation in the incidence of P. falciparum ( Table 3 , any density: Χ 2 = 32.5, df = 10, p<0.001 Pf >2500: Χ 2 = 35.2, df = 5, p<0.001) and P. vivax ( Table 4 , any density: Χ 2 = 47.5, df = 10, p<0.001, Pv >500: Χ 2 = 56.5, df = 10, p<0.001) but not P. malariae episodes (any density: Χ 2 = 7.4.0, df = 10, p = 0.69).

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