Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
immunology and microbiology
Can source reduction of mosquito larval habitat reduce malaria transmission in Tigray, Ethiopia?
Tropical Medicine and International Health, Volume 10, No. 12, Year 2005
Notification
URL copied to clipboard!
Description
The development of irrigation schemes by dam construction has led to an increased risk of malaria in Tigray, Ethiopia. We carried out a pilot study near a microdam to assess whether environmental management could reduce malaria transmission by Anopheles arabiensis, the main vector in Ethiopia. The study took place in Deba village, close to a dam; Maisheru village, situated 3-4 km away from the dam, acted as a control. Baseline entomological and clinical data were collected in both villages during the first 12 months. Source reduction, involving filling, draining and shading of potential mosquito-breeding habitats was carried out by the community of Deba in the second year and routine surveillance continued in both villages during the second year. Anopheles arabiensis was highly anthropophilic (Human Blood Index = 0.73), biting early in the night before people went to bed. The major breeding habitats associated with the dam were areas of seepage at the dam base (28%), leaking irrigation canals (16%), pools that formed along the bed of streams from the dam (13%), and man-made pools (12%). In the pre-intervention year, 5.9-7.2 times more adult vectors were found in the dam village compared with the control village. There was a 3.1% higher prevalence of an enlarged spleen in children under 10 years in the dam village than in the control village during the pre-intervention period, but no statistically significant difference was found in the incidence of falciparum malaria between the two villages during the same period. Source reduction was associated with a 49% (95% CI = 46.6-50.0) relative reduction in An. arabiensis adults in the dam village compared with the pre-intervention period. There were very few cases of malaria during the intervention period in both villages making it impossible to judge whether malaria incidence had been reduced. These preliminary findings suggest that in areas of low intensity transmission community-led larval control may be a cheap and effective method of controlling malaria. Further, large-scale studies are needed to confirm these findings. © 2005 Blackwell Publishing Ltd.
Authors & Co-Authors
Yohannes, Mekonnen Alemu Gebre
Ethiopia, Makale
Mekelle University
Haile, Mitiku
Ethiopia, Makale
Mekelle University
Ghebreyesus, Tedros Adhanom
Ethiopia, Adi-daero
Tigray Regional Health Bureau
Witten, Karen Hanna
Ethiopia, Adi-daero
Tigray Regional Health Bureau
Getachew, Asefaw
Ethiopia, Adi-daero
Tigray Regional Health Bureau
Byass, P.
United Kingdom, Nottingham
University of Nottingham
Sweden, Umea
Umeå Universitet
Lindsay, Steve W.
United Kingdom, Durham
Durham University
Statistics
Citations: 143
Authors: 7
Affiliations: 5
Identifiers
Doi:
10.1111/j.1365-3156.2005.01512.x
ISSN:
13602276
e-ISSN:
13653156
Research Areas
Infectious Diseases
Maternal And Child Health
Study Design
Randomised Control Trial
Cross Sectional Study
Cohort Study
Study Locations
Ethiopia