Leveraging risk maps of malaria vector abundance to guide control efforts reduces malaria incidence in Eastern Province, Zambia.
Sci Rep
; 10(1): 10307, 2020 06 25.
Article
in En
| MEDLINE
| ID: mdl-32587283
ABSTRACT
Although transmission of malaria and other mosquito-borne diseases is geographically heterogeneous, in sub-Saharan Africa risk maps are rarely used to determine which communities receive vector control interventions. We compared outcomes in areas receiving different indoor residual spray (IRS) strategies in Eastern Province, Zambia (1) concentrating IRS interventions within a geographical area, (2) prioritizing communities to receive IRS based on predicted probabilities of Anopheles funestus, and (3) prioritizing communities to receive IRS based on observed malaria incidence at nearby health centers. Here we show that the use of predicted probabilities of An. funestus to guide IRS implementation saw the largest decrease in malaria incidence at health centers, a 13% reduction (95% confidence interval = 5-21%) compared to concentrating IRS geographically and a 37% reduction (95% confidence interval = 30-44%) compared to targeting IRS based on health facility incidence. These results suggest that vector control programs could produce better outcomes by prioritizing IRS according to malaria-vector risk maps.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Mosquito Control
/
Ecological Parameter Monitoring
/
Mosquito Vectors
/
Malaria
/
Anopheles
Type of study:
Etiology_studies
/
Incidence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Animals
/
Humans
Country/Region as subject:
Africa
Language:
En
Journal:
Sci Rep
Year:
2020
Document type:
Article
Affiliation country:
United States