Spatial variation of Anopheles-transmitted Wuchereria bancrofti and Plasmodium falciparum infection densities in Papua New Guinea |
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| Authors: | Neal D Alexander Rana A Moyeed Phil J Hyun Zachary B Dimber Moses J Bockarie Julian Stander Bryan T Grenfell James W Kazura Michael P Alpers |
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| Affiliation: | London School of Hygiene and Tropical Medicine, Infectious Disease Epidemiology Unit, Keppel Street, London WC1E 7HT, United Kingdom. neal.alexander@lshtm.ac.uk |
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| Abstract: | The spatial variation of Wuchereria bancrofti and Plasmodium falciparum infection densities was measured in a rural area of Papua New Guinea where they share anopheline vectors. The spatial correlation of W. bancrofti was found to reduce by half over an estimated distance of 1.7 km, much smaller than the 50 km grid used by the World Health Organization rapid mapping method. For P. falciparum, negligible spatial correlation was found. After mass treatment with anti-filarial drugs, there was negligible correlation between the changes in the densities of the two parasites. |
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