Weekly epidemiological record / Relevé épidémiologique hebdomadaire
22 SEPTEMBER 2017, 92th YEAR / 22 SEPTEMBRE 2017, 92e ANNÉE
No 38, 2017, 92, 557–572
There are 4 main forms of the disease: visceral leishmaniasis (VL, also known as kala-azar); post-kala-azar dermal leishmania...sis (PKDL); cutaneous leishmaniasis (CL); and mucocutaneous leishmaniasis (MCL). While cutaneous leishmaniasis is the most common form of the disease, visceral leishmaniasis is the most serious and can be fatal if untreated. Additionally, leishmaniasis can be classified as anthroponotic or zoonotic depending on whether the natural reservoir of the parasite is human or animal.
This report updates global epidemiological information on VL and CL to 2015, based on the main indicators published in the GHO, as of 1st September 2017.
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The Impact of the Zika Outbreak on Women and Girls in Northeastern Brazil
O impacto do vírus Zika nas meninas e mulheres no nordeste do Brasil
Since December 2016, the El Niño Southern Oscillation (ENSO) has affected Peru, causing heavy rainfall, floods, landslides, hail and electric storms. Although the impact has been particularly serious in the northern coastal regions, levels of affectation are reported in all 24 of the country’s de...partments.
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Long-term planning for an adequate and safe supply of drinking-water should be set in the context of growing external uncertainties arising from changes in the climate and environment. The water safety plan (WSP) process offers a systematic framework to manage these risks by considering the implica...tions of climate variability and change.
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The report reflects on the trends, achievements and challenges in global health over the past decade during which Dr Margaret Chan has been Director-General of WHO. It discusses the role of WHO in dealing with such issues as the rise of noncommunicable diseases, leaps in life expectancy, and emergin...g threats like climate change and antimicrobial resistance.
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Ethiopia met the MDG target for drinking water access with a unique and high degree of success. The magnitude of the country’s success in providing improved drinking water to nearly half of its population in 25 years despite its diversity, size, and challenges cannot be overstated. This case study... documents the progress of the Ethiopian WASH sector from 1990 to 2015, and analyzes the impact of local systems created in Ethiopia to respond to water and sanitation challenges.
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This report investigates the impact of potential misclassification of samples on HIV prevalence estimates for 23 surveys conducted from 2010-2014. In addition to visual inspection of laboratory results, we examined how accounting for potential misclassification of HIV status through Bayesian latent ...class models affected the prevalence estimates. Two types of Bayesian models were specified: a model that only uses the individual dichotomous test results and a continuous model that uses the quantitative information of the EIA (i.e., the signal-to-cutoff values). Overall, we found that adjusted prevalence estimates matched the surveys’ original results, with overlapping uncertainty intervals. This suggested that misclassification of HIV status should not affect the prevalence estimates in most surveys. However, our analyses suggested that two surveys may be problematic. The prevalence could have been overestimated in the Uganda AIDS Indicator Survey 2011 and the Zambia Demographic and Health Survey 2013-14, although the magnitude of overestimation remains difficult to ascertain. Interpreting results from the Uganda survey is difficult because of the lack of internal quality control and potential violation of the multivariate normality assumption of the continuous Bayesian latent class model. In conclusion, despite the limitations of our latent class models, our analyses suggest that prevalence estimates from most of the surveys reviewed are not affected by sample misclassification.
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Biennial Report of the Regional Director
Case study
An emergency WASH gap exists – there is little disagreement on this point within the humanitarian sector. There is a paucity of emergency WASH capacity, but a surplus of complacency. This report provides an overview of both historical trends and current challenges in emergency WASH pro...gramming.
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Expanding access to quality health services through task sharing