| Literature DB >> 16930605 |
R Alan Wilson1, Govert J van Dam, Thomas M Kariuki, Idle O Farah, André M Deelder, Patricia S Coulson.
Abstract
In human schistosomiasis mansoni, it is impossible to directly determine worm burden and hence infection intensity, so surrogates must be used. Studies on non-human primates revealed a linear relationship between worm burden and three surrogates, faecal egg output, circulating anodic and circulating cathodic antigens. By regression, the thresholds of detection were determined as 40, 24 and 47 worms, respectively. These observations provide a quantitative basis for the contention that low intensity infections in humans are being missed. The significance for estimates of disease prevalence, evaluation of the effects of chemotherapy and the implementation of vaccine trials is emphasised.Entities:
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Year: 2006 PMID： 16930605 DOI： 10.1016/j.ijpara.2006.07.002
Source DB: PubMed Journal: Int J Parasitol ISSN： 0020-7519 Impact factor: 3.981