Journal article

Age- and species-specific duration of infection in asymptomatic malaria infections in Papua New Guinea

MC Bruce, CA Donnelly, M Packer, M Lagog, N Gibson, A Narara, D Walliker, MP Alpers, KP Day



The burden and duration of asymptomatic malaria infections were measured in residents of the malaria endemic village of Gonoa, Madang Province, Papua New Guinea. Plasmodium falciparum, P. vivax and P. malariae infections in people aged 4 years to adulthood were compared. Frequent sampling at 3-day intervals for up to 61 days allowed assessment of individual episodes of infection. Statistical assessment of P. falciparum detection revealed a periodicity consistent with synchronous replication of this species over periods up to 27 days. The duration of P. falciparum episodes was longer across all age groups than that of P. vivax and P. malariae. A trend for decreasing duration with age was also..

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University of Melbourne Researchers