Improved dengue fever prevention through innovative intervention methods in the city of Salto, Uruguay

• Background: Uruguay is located at the southern border of Aedes aegypti distribution on the South American sub-continent. The reported dengue cases in the country are all imported from surrounding countries. One of the cities at higher risk of local dengue transmission is Salto, a border city with heavy traffic from dengue endemic areas. Methods: We completed an intervention study using a cluster randomized trial design in 20 randomly selected 'clusters' in Salto. The clusters were located in neighborhoods of differing geography and economic, cultural and social aspects. Results: Entomological surveys were carried out to measure the impact of the intervention on vector densities. Through participatory processes of all stakeholders, an appropriate ecosystem management intervention was defined. Residents collected the abundant small water holding containers and the Ministry of Public Health and the Municipality of Salto were responsible for collecting and eliminating them. Additional vector breeding places were large water tanks; they were either altered so that they could not hold water any more or covered so that oviposition by mosquitoes could not take place. Conclusions: The response from the community and national programme managers was encouraging. The intervention evidenced opportunities for cost savings and reducing dengue vector densities (although not to statistically significant levels). The observed low vector density limits the potential reduction due to the intervention. A larger sample size is needed to obtain a statistically significant difference.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Hälsovetenskap -- Arbetsmedicin och miljömedicin (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Health Sciences -- Occupational Health and Environmental Health (hsv//eng)

Nyckelord

Aedes aegypti

Community participation

Cost analysis

Eco-bio-social research

Entomological indices

Inter-sectorial approaches

AEDES-AEGYPTI DIPTERA

LIFE TABLE MODEL

VECTOR

MULTICOUNTRY

AMERICA

CULICIDAE

URBAN

Public

Environmental & Occupational Health

Tropical Medicine

CKS DA

1993

JOURNAL OF MEDICAL ENTOMOLOGY

V30

P1003

CKS DA

1993

JOURNAL OF MEDICAL ENTOMOLOGY

V30

P1018

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