HIV/TB Research Meeting; March 3, 2013
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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From the start of the COVID-19 pandemic until August 2021, extreme weather events have affected at least 139.2 million people and killed at least 17,242 people in at least 433 unique events. These figures are certainly an underestimate, as they do not include estimates of numbers of people affected ...by extreme temperatures, or mortality during drought events.
One dimension of the compound risk of COVID-19 and climate extremes was the additional challenge of preparing for and responding to disasters during the pandemic, such as the constraints of physical distancing during evacuations and response operations.
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The Road to Recovery. This synthesis report is based on three national studies on the evolution of the Ebola epidemic and its impact on Guinea, Liberia and Sierra Leone
As the war in Ukraine pushes food, fuel and fertilizer prices toward record levels putting food security in many of the world’s poorest countries at risk, the UN’s International Fund for Agricultural Development (IFAD) today launched a Crisis Response Initiative to ensure that small-scale farmer...s in high-risk countries can produce food over the next few months to feed their families and communities while reducing the threat to future harvests.
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DEMOGRAPHIC RESEARCH, VOLUME 36, ARTICLE 37, PAGES 1081-1108; PUBLISHED 5 APRIL 2017; http://www.demographic-research.org/Volumes/Vol36/37/; DOI: 10.4054/DemRes.2017.36.37
with special reference to prevention and control of avian influenza
Children in Kabwe are especially at risk because they are more likely to ingest lead dust when playing in the soil, their brains and bodies are still developing, and they absorb four to five times as much lead as adults. The consequences for children who are exposed to high levels of lead and are no...t treated include reading and learning barriers or disabilities; behavioral problems; impaired growth; anemia; brain, liver, kidney, nerve, and stomach damage; coma and convulsions; and death. After prolonged exposure, the effects are irreversible. Lead also increases the risk of miscarriage and can be transmitted through both the placenta and breastmilk.
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8 January 2021
Sequencing enabled the world to rapidly identify SARS-CoV-2 and develop diagnostic tests and other tools for outbreak management. Continued genome sequencing supports the monitoring of the disease’s spread and evolution of the virus. Accelerated integration of genome sequencing int...o the practices of the global health community is required if we want to be better prepared for the future threats. This document provides guidance for laboratories on maximizing the impact of SARS-CoV-2 sequencing now and other emerging pathogens in the future.
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The Public Health Burden of Secondhand Exposure to Commercial Tobacco Smoke Secondhand smoke, the combination of smoke from burning commercial tobacco* products and the smoke breathed out by a person who is smoking, is deadly.
This report examines the support to private healthcare provision in India by the World Bank’s private sector arm, the International Finance Corporation (IFC). Despite supporting private healthcare in the country since 1997, no healthcare results for lending and investments have been disclosed sinc...e the start of these operations over twenty-five years ago. The IFC has overwhelmingly invested in high-end urban hospitals which are out of reach for the majority of Indians. Several have consistently failed to provide free healthcare to poor patients despite this being a condition under which free or subsidized public land was allotted to these hospitals. Supporting private healthcare in a context where 37% of Indians experience catastrophic health expenditures in private hospitals appears to run counter to the World Bank Group’s focus on poverty reduction. These investments do not contribute to the building of stronger healthcare infrastructure or respond to unmet healthcare needs. Only 14% of IFC-financed hospitals are located in the 10 states ranked lowest in terms of the overall performance of the health system. Furthermore, we found many instances where regulators upheld complaints pertaining to violations of patients’ rights by these hospitals including overcharging, denial of healthcare, price rigging, financial conflict of interest and medical negligence.
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