Volume 75, Issue 6
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


A retrospective surveillance study was conducted to examine the micro-geographic variation of malaria incidence in three malaria-endemic communities in the Northern Peruvian Amazon. The annual malaria risk rate (per 100) ranged from 38% to 47% for and from 15% to 18% for . Spatial clusters were found for in Padre Cocha, Manacamiri, and Zungaro Cocha, and for only in Padre Cocha. Spatial-temporal clusters showed that the highest monthly number of cases varied every year from December to March in 1996–1997 and from February to June in 1998–1999, and for from November to April in 1996–1997 and from January to April in 1998–1999. Our results suggest a constant presence of high-risk areas (hot spots) for malaria infection in periods with high or low malaria incidence. Modest targeted control efforts directed at identified high-risk areas may have significant impact on malaria transmission in this region.


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  • Received : 25 Apr 2006
  • Accepted : 04 Aug 2006

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