Remote sensing and malaria risk for military personnel in Africa.

Abstract:

BACKGROUND:Nonimmune travelers in malaria-endemic areas are exposed to transmission and may experience clinical malaria attacks during or after their travel despite using antivectorial devices or chemoprophylaxis. Environment plays an essential role in the epidemiology of this disease. Remote-sensed environmental information had not yet been tested as an indicator of malaria risk among nonimmune travelers. METHODS:A total of 1,189 personnel from 10 French military companies traveling for a short-duration mission (about 4 mo) in sub-Saharan Africa from February 2004 to February 2006 were enrolled in a prospective longitudinal cohort study. Incidence rate of clinical malaria attacks occurring during or after the mission was analyzed according to individual characteristics, compliance with antimalaria prophylactic measures, and environmental information obtained from earth observation satellites for all the locations visited during the missions. RESULTS:Age, the lack of compliance with the chemoprophylaxis, and staying in areas with an average Normalized Difference Vegetation Index higher than 0.35 were risk factors for clinical malaria. CONCLUSIONS:Remotely sensed environmental data can provide important planning information on the likely level of malaria risk among nonimmune travelers who could be briefly exposed to malaria transmission and could be used to standardize for the risk of malaria transmission when evaluating the efficacy of antimalaria prophylactic measures.

journal_name

J Travel Med

authors

Machault V,Orlandi-Pradines E,Michel R,Pagès F,Texier G,Pradines B,Fusaï T,Boutin JP,Rogier C

doi

10.1111/j.1708-8305.2008.00202.x

subject

Has Abstract

pub_date

2008-07-01 00:00:00

pages

216-20

issue

4

eissn

1195-1982

issn

1708-8305

pii

JTM202

journal_volume

15

pub_type

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