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Analyses of individual post-treatment patterns of hookworm reinfection among 112 villagers in an endemic area of West Bengal provide quantitative evidence of predisposition to heavy infection. This observation has implications for the design of control programs based on chemotherapy because of the potential economic advantage of selective or targeted treatment as opposed to mass or blanket treatment.<\/jats:p>","DOI":"10.1126\/science.4012307","type":"journal-article","created":{"date-parts":[[2006,10,5]],"date-time":"2006-10-05T19:42:50Z","timestamp":1160077370000},"page":"1537-1540","source":"Crossref","is-referenced-by-count":158,"title":["Predisposition to Hookworm Infection in Humans"],"prefix":"10.1126","volume":"228","author":[{"given":"G. A.","family":"Schad","sequence":"first","affiliation":[{"name":"Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia 19104"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R. 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