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The epidemiology of malaria in an epidemic area of the Peruvian Amazon.
M H Roper
M H Roper
U.S. Naval Medical Research Center Detachment, Lima, Peru.
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R S Torres
R S Torres
U.S. Naval Medical Research Center Detachment, Lima, Peru.
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C G Goicochea
C G Goicochea
U.S. Naval Medical Research Center Detachment, Lima, Peru.
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E M Andersen
E M Andersen
U.S. Naval Medical Research Center Detachment, Lima, Peru.
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J S Guarda
J S Guarda
U.S. Naval Medical Research Center Detachment, Lima, Peru.
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C Calampa
C Calampa
U.S. Naval Medical Research Center Detachment, Lima, Peru.
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A W Hightower
A W Hightower
U.S. Naval Medical Research Center Detachment, Lima, Peru.
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A J Magill
A J Magill
U.S. Naval Medical Research Center Detachment, Lima, Peru.
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A longitudinal study of malariometric indicators and their association with potential risk factors was conducted during August 1997-July 1998 at Padre Cocha, a village of 1,400 residents in the Peruvian Amazon. The incidence of Plasmodium falciparum infections during the study year was 166/1,000 persons; that of P. vivax was 826/1,000 persons. The mean duration of symptoms prior to diagnosis was 2 days; presenting geometric mean parasite densities were 3,976 parasites/microl for P. falciparum infections and 2,282 parasites/microl for P. vivax. There were no malaria-associated deaths. Consistent with the epidemic nature of malaria in the area, the incidence of both parasite species increased with age and there were no age-specific differences in mean parasite densities. No specific occupational risks for malaria were identified. Activities significantly associated with malaria risk reflected local vector behavior and included strolling outdoors after 6:00 PM and arising before 6:00 AM for adults, and attending evening church services for children.
| Past two years | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 19 | 19 | 4 |
| Full Text Views | 530 | 247 | 1 |
| PDF Downloads | 67 | 16 | 0 |