Relative effect of mass survey and selective survey in mass diethylcarbamazine treatment
Rao, P.K.; Narayana, M.V.; Narasimham, M.V.; Rao, C.K.
Journal of Communicable Diseases 18(1): 51-53
1986
ISSN/ISBN: 0019-5138 PMID: 3528276 Document Number: 278587
The relative efficacy of mass and selective surveys in mass diethylcarbamazine (DEC) treatments was evaluated in 2 adjoining villages in an area endemic for bancroftian filariasis in Andhra Pradesh, India, covered by the National Filaria Control Programme. The inhabitants (excluding the chronically sick, pregnant women and the disabled) of both villages were treated with DEC at 6 mg/kg body-weight/day for 12 days. The results were evaluated one year later. In Modukurru, where mass parasitological survey was carried out, 88.4 and 57.2% of the population was covered before and after treatment respectively, and 90% were treated, the mf rate dropped from 17.3 to 6.0% (65.3% reduction) and the mean mf density declined from 29.9 to 12.1 (59.5% reduction). At Nawabupeta, where 13.6% of the population was covered in the initial survey and 36.9% after treatment, and 45.4% were treated, the mf rate dropped from 14.3 to 10.4% (27.3% reduction) and the mean mf density declined from 29.0 to 18.4 (36.6% reduction).