Evaluation of a mass distribution programme for fine-mesh impregnated bednets against visceral leishmaniasis in eastern Sudan.

Hdl Handle:
http://hdl.handle.net/10144/17288
Title:
Evaluation of a mass distribution programme for fine-mesh impregnated bednets against visceral leishmaniasis in eastern Sudan.
Authors:
Ritmeijer, K; Davies, C; van Zorge, R; Wang, S J; Schorscher, J; Dongu'du, S I; Davidson, R N
Journal:
Tropical Medicine & International Health
Abstract:
During an epidemic of visceral leishmaniasis (VL) in eastern Sudan, Médecins Sans Frontières distributed 357,000 insecticide-treated bednets (ITN) to 155 affected villages between May 1999 and March 2001. To estimate the protective effect of the ITN, we evaluated coverage and use of ITN, and analysed VL incidence by village from March 1996 to June 2002. We provided ITN to 94% of the individuals >5 years old. Two years later, 44% (95% CI 39-48%) of nets were reasonably intact. Because ITN were mainly used as protection against nuisance mosquitoes, bednet use during the VL transmission season ranged from <10% during the hot dry months to 55% during the beginning of the rainy season. ITN were put up from 9 to 11 p.m., leaving children unprotected during a significant period of sandfly-biting hours after sunset. Regression analysis of incidence data from 114 villages demonstrated a significant reduction of VL by village and month following ITN provision. The greatest effect was 17-20 months post-intervention, with VL cases reduced by 59% (95% CI: 25-78%). An estimated 1060 VL cases were prevented between June 1999 and January 2001, a mean protective effect of 27%. Although results need to be interpreted with caution, this analysis indicates a potentially strong reduction in VL incidence following a community distribution of ITN. The effectiveness of ITN depends on behavioural factors, which differ between communities.
Affiliation:
Médecins Sans Frontières-Holland, Amsterdam, The Netherlands. koert_ritmeijer@amsterdam.msf.org
Publisher:
Wiley-Blackwell
Issue Date:
Mar-2007
URI:
http://hdl.handle.net/10144/17288
DOI:
10.1111/j.1365-3156.2006.01807.x
PubMed ID:
17313512
Additional Links:
http://www.blackwell-synergy.com/loi/tmi
Language:
en
ISSN:
1360-2276
Appears in Collections:
Leishmaniasis/Kala Azar

Full metadata record

DC FieldValue Language
dc.contributor.authorRitmeijer, K-
dc.contributor.authorDavies, C-
dc.contributor.authorvan Zorge, R-
dc.contributor.authorWang, S J-
dc.contributor.authorSchorscher, J-
dc.contributor.authorDongu'du, S I-
dc.contributor.authorDavidson, R N-
dc.date.accessioned2008-01-31T16:37:58Z-
dc.date.available2008-01-31T16:37:58Z-
dc.date.issued2007-03-
dc.identifier.citationEvaluation of a mass distribution programme for fine-mesh impregnated bednets against visceral leishmaniasis in eastern Sudan. 2007, 12 (3):404-14 Trop. Med. Int. Healthen
dc.identifier.issn1360-2276-
dc.identifier.pmid17313512-
dc.identifier.doi10.1111/j.1365-3156.2006.01807.x-
dc.identifier.urihttp://hdl.handle.net/10144/17288-
dc.description.abstractDuring an epidemic of visceral leishmaniasis (VL) in eastern Sudan, Médecins Sans Frontières distributed 357,000 insecticide-treated bednets (ITN) to 155 affected villages between May 1999 and March 2001. To estimate the protective effect of the ITN, we evaluated coverage and use of ITN, and analysed VL incidence by village from March 1996 to June 2002. We provided ITN to 94% of the individuals >5 years old. Two years later, 44% (95% CI 39-48%) of nets were reasonably intact. Because ITN were mainly used as protection against nuisance mosquitoes, bednet use during the VL transmission season ranged from <10% during the hot dry months to 55% during the beginning of the rainy season. ITN were put up from 9 to 11 p.m., leaving children unprotected during a significant period of sandfly-biting hours after sunset. Regression analysis of incidence data from 114 villages demonstrated a significant reduction of VL by village and month following ITN provision. The greatest effect was 17-20 months post-intervention, with VL cases reduced by 59% (95% CI: 25-78%). An estimated 1060 VL cases were prevented between June 1999 and January 2001, a mean protective effect of 27%. Although results need to be interpreted with caution, this analysis indicates a potentially strong reduction in VL incidence following a community distribution of ITN. The effectiveness of ITN depends on behavioural factors, which differ between communities.en
dc.language.isoenen
dc.publisherWiley-Blackwell-
dc.relation.urlhttp://www.blackwell-synergy.com/loi/tmi-
dc.rightsArchived on this site with the kind permission of Wiley-Blackwellen
dc.subject.meshAdulten
dc.subject.meshBedding and Linensen
dc.subject.meshChilden
dc.subject.meshCosts and Cost Analysisen
dc.subject.meshEndemic Diseasesen
dc.subject.meshEquipment Failureen
dc.subject.meshHumansen
dc.subject.meshInsect Bites and Stingsen
dc.subject.meshInsecticidesen
dc.subject.meshLeishmaniasis, Visceralen
dc.subject.meshPopulation Surveillanceen
dc.subject.meshProgram Evaluationen
dc.subject.meshRural Healthen
dc.subject.meshSeasonsen
dc.subject.meshSudanen
dc.titleEvaluation of a mass distribution programme for fine-mesh impregnated bednets against visceral leishmaniasis in eastern Sudan.en
dc.contributor.departmentMédecins Sans Frontières-Holland, Amsterdam, The Netherlands. koert_ritmeijer@amsterdam.msf.orgen
dc.identifier.journalTropical Medicine & International Healthen
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