Abstractobjective To assess the impact of deworming and iron supplementation on the cognitive abilities and educational achievement of school-age children in Sri Lanka.methods Prospective, placebo-controlled randomised study. The treatment group received deworming and weekly iron supplementation for 6 months; the control group received placebo for both the anthelmintic and iron. A mixed effects regression model was used to answer the main research question. To increase the precision of this study's estimates, various background variables were controlled for that were not related to treatment but could have some impact on the outcome.results The prevalence of soil-transmitted helminth (STH) infection was reduced in the treatment group (n = 615), with significant differences between treatment and control groups (n = 575) in the levels of Ascaris and Trichuris.

BackgroundThe plantation sector in Sri Lanka lags behind the rest of the country in terms of living conditions and health. In 1992, a sector-wide survey of children aged 3–12 years and women of reproductive age showed >90% prevalence of soil-transmitted helminth infections. Biannual mass de-worming targeting children aged 3–18 years started in 1994 and was continued until 2005. The present study was carried out to assess the status of infection four years after cessation of mass de-worming.Methods/FindingsA school-based cross-sectional survey was carried out. Faecal samples from approximately 20 children from each of 114 schools in five districts were examined using the modified Kato-Katz technique. Data regarding the school, the child's family and household sanitation were recorded after inspection of schools and households. Multivariate analysis was carried out using logistic regression, to identify risk factors for infection. Faecal samples were obtained from 1890 children. In 4/5 districts, >20% were infected with one or more helminth species. Overall combined prevalence was 29.0%; 11.6% had infections of moderate-heavy intensity. The commonest infection was Ascaris lumbricoides, present in all five districts, as was Trichuris trichiura. Hookworm was not detected in two districts. Multivariate analysis identified low altitude and maternal under-education as risk factors for all three infections. Poor household sanitation was identified as a risk factor for A. lumbricoides and hookworm, but not T. trichiura infections.Conclusions/SignificanceThe results indicate that regular mass de-worming of plantation sector children should be resumed along with more emphasis on better sanitation and health education. They show that even after 10 years of mass chemotherapy, prevalence can bounce back after cessation of preventive chemotherapy, if the initial force of transmission is strong and other long-term control measures are not concomitantly implemented.

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According to the Centers for Disease Control and Prevention, from being nonendemic for melioidosis, India has now become endemic for the disease since 2012. Until then, melioidosis cases were being reported sporadically from India. There have been isolated case reports from few states across the country for the past few years. Most of the times, Burkholderia pseudomallei may be misreported as Pseudomonas species, especially in resource-poor laboratories. Due to its varied clinical presentation, the specific clinical diagnosis can be difficult, thereby making laboratory diagnosis mandatory. This could make a huge impact on patient care as this organism has a different treatment protocol as well as virulence determinants which influence the course of management. Although known for its endemicity in Australia, Thailand, and other Southeast Asian countries, B. pseudomallei has emerged in new areas such as India, Southern China, Brazil, and Malawi. We present a rare case of melioidosis with rapid disease progression to fatal outcome from Chennai, South India.

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