Control of malaria vectors: cost analysis in a province of northern Vietnam

• Published in: Tropical medicine & international health Vol. 4; no. 2; pp. 139 - 145
• Main Authors: Verlé, P., Lieu, T. T. T., Kongs, A., Van der Stuyft, P., Coosemans, M.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Science Ltd 01.02.1999; Blackwell Science
• Subjects: Animals; Anopheles; Bedding and Linens; Biological and medical sciences; cost analysis; Cost-Benefit Analysis; Cross-Sectional Studies; Fundamental and applied biological sciences. Psychology; Humans; Insect Vectors; Insecticides - economics; insecticide‐treated bednets; malaria; Malaria - prevention & control; Medically important nuisances and vectors, pests of stored products and materials: population survey and control; Mosquito Control - economics; Mosquito Control - methods; National Health Programs; Nitriles; Permethrin; Pyrethrins - economics; Tropical medicine; vector control; Vectors. Intermediate hosts; Vietnam; Asia; Vietnam; Protozoal disease; Insecticide; Malaria; Insecta; Pesticides; Parasitosis; Infection; Anopheles; Sanitary control; Arthropoda; Culicidae; Invertebrata; Cost analysis; Vector; Diptera
• ISSN: 1360-2276; 1365-3156
• DOI: 10.1046/j.1365-3156.1999.00365.x

Summary The cost of permethrin‐treated bednets (50% EC; 0.2 g/m2, 2 rounds per year) was compared to the cost of residual spraying with lambdacyhalothrin 10% WP (0.03 g/m2, once yearly) in Hoa Binh, a mountainous province in northern Vietnam. Calculations of the amounts of insecticides needed were based on national guidelines, on data from a cross‐sectional survey and on district activity reports. The actual cost of insecticide required per person per year was lower for impregnation (US$ 0.26) than for spraying (US$ 0.36), but the difference was smaller than expected. The total cost for impregnated bednets per person per year amounted to US$ 0.90 compared to US$ 0.47 for spraying. The determining factor was the cost of the net, amounting to US$ 0.58 per person per year, assuming a 5‐year life of the net. Other material (excluding nets), labour and transport combined, accounted for only 17% of the impregnation cost and 23% of spraying expenses. However, for the National Malaria Control Programme of Vietnam, the cost per person per year for impregnated bednets amounted to US$ 0.32 only, because the vast majority of nets are bought by the population. For spraying, the programme had to bear the entire cost.