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The development of a reproducible method to estimate numbers of street children is both timely and welcome given the traditional difficulties of doing so—funding agencies tend to underestimate numbers to protect limited resources, while aid organisations overestimate in a bid to secure financial support. Researchers used the capture-recapture method of constructing and comparing independent lists of street children in the Brazilian city of Aracaju (population 461 534), and returned an estimate of 1456, roughly halfway between the previously conflicting estimations of 200 to 3000. The authors note that no other gold standard exists to predict numbers, and the fact that this method is both reproducible and free from external manipulation makes it particularly appealing. (
Arch Dis Child 2004;89:222–4
Further cases of meningococcal disease are likely to develop after initial infection in schools and preschools in England and Wales. Surveillance was performed in educational
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