Rs. Yadav et al., Evaluation of lambdacyhalothrin-impregnated bednets in a malaria endemic area of India. Part 3. Effects on malaria incidence and clinical measures, J AM MOSQ C, 14(4), 1998, pp. 444-450
Citations number
25
Categorie Soggetti
Entomology/Pest Control
Journal title
JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION
In Indian villages with high malaria endemicity use of nylon bednets treate
d at 25 mg/m(2) at 6-month intervals for 3 years caused significant reducti
ons in malaria incidence, slide positivity rate, slide falciparum rate, ann
ual parasite index, and parasite rate in the entire population, as well as
reductions in rates of splenomegaly and anemia in children. In villages wit
h untreated nets, considerable reduction also occurred in these parameters
except for the rate of splenomegaly. In the village without nets, a relativ
ely small drop occurred in the parasite rate and anemia but no change occur
red in malaria incidence, and an increase occurred in the rate of splenomeg
aly. The trial thus showed the efficacy of impregnated bednets against mala
ria in the forested hills of Orissa State where the existing control strate
gy based on indoor residual spraying of DDT has remained incapable of inter
rupting malaria transmission.