Disinfection of drinking-water supplies has been one of the most significant public health advancements of the last century with respect to reducing waterborne disease.
Although chlorine has been used as the disinfectant of choice for public drinking-water supplies for the past century, a numbe...r of emerging or alternative compounds are used or are being considered for the disinfection of drinking-water.
This series reviews the state of the knowledge on the application, efficacy and toxicity of bromine, iodine and silver as drinking-water disinfectants.
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The epidemiology of wheeze in children, when assessed by questionnaires, is dependent on parents' understanding of the term “wheeze”.
In a questionnaire survey of a random population sample of 4,236 children aged 6–10 yrs, parents' definition of wheeze was assessed. Predictors of a correct ...definition were determined and the potential impact of incorrect answers on prevalence estimates from the survey was assessed.
Current wheeze was reported by 13.2% of children. Overall, 83.5% of parents correctly identified “whistling or squeaking” as the definition of wheeze; the proportion was higher for parents reporting wheezy children (90.4%). Frequent attacks of reported wheeze (adjusted odds ratio (OR) 3.0), maternal history of asthma (OR 1.5) and maternal education (OR 1.5) were significantly associated with a correct answer, while the converse was found for South Asian ethnicity (OR 0.6), first language not English (OR 0.6) and living in a deprived neighbourhood (OR 0.6).
In summary, the present study showed that misunderstanding could lead to an important bias in assessing the prevalence of wheeze, resulting in an underestimation in children from South Asian and deprived family backgrounds. Prevalence estimates for the most severe categories of wheeze might be less affected by this bias and questionnaire surveys on wheeze should incorporate measures of parents' understanding of the term wheeze.
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Guidance has been updated on a number of chemicals: asbestos, bentazone, chromium, iodine, manganese, microcystins, nickel, silver, tetrachloroethene and trichloroethene. Guidance has also been added for chemicals not previously assessed in the Guid...elines: anatoxin-a and analogues, cylindrospermopsins and saxitoxins. The new guidance on organotins has replaced the prior guidance focused on dialkyltins. With these updates, the guideline values for tetrachloroethene and trichloroethene have been revised while new guideline values for cylindrospermopsins, manganese, microcystins, and saxitoxins have been established .
Updated information on cyanobacteria has been included, introducing an alert level framework for early-warning and to guide short-term management responses. Guidance has also been updated in the sections on adequacy of water supply, climate change, emergencies, food production and processing, and radiological aspects, particularly on managing radionuclides when exceeding WHO screening values and guidance levels.
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Building on the 2021 Interim guidance, this second version and update, incorporates the lessons and feedback from the hepatitis pilots that successfully demonstrated the feasibility of measuring hepatitis B and C impact targets to demonstrate elimination, whilst highlighting challenges caused by hig...h disease burden in some countries, as well as delays in reaching mortality targets due to the long natural history of disease progression to liver cirrhosis and hepatocellular carcinoma.
The path to elimination provides a framework with 3 levels of achievements for which WHO certification is available. Each stepwise progression from bronze to silver to gold tiers will promote an iterative expansion of prevention, diagnosis and treatment services for viral hepatitis services and strengthen measurement systems to support attainment of the 2030 elimination goals.
This updated version also includes changes, clarifications and new guidance on alternative measurement approaches for country validation of elimination. Through the validation process, WHO and partners continue to provide country support for strengthening health system capacity and patient-centred services that respect and protect the human rights of people living with viral hepatitis and ensures meaningful engagement of communities in the national, regional and global viral hepatitis response.
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Armed Forces Pest Management Board Technical Guide No. 47
Approximately 80% of the 463 million adults worldwide with diabetes live in low-income and middle-income countries (LMICs). A major obstacle to designing evidence-based policies to improve diabetes outcomes in LMICs is the scarce availability of nationally representative data on the current patterns... of treatment coverage. The objectives of this study were to estimate the proportion of adults with diabetes in LMICs who receive coverage of recommended pharmacological and non-pharmacological diabetes treatment; and to describe country-level and individual-level characteristics that are associated with treatment.
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Much of our knowledge about PTSD is based on studies of adults. As evidenced by the birth of new scientific disciplines (e.g., developmental translational neuroscience), it is clear that what we learn from research involving adults may not necessarily be applicable to children and adolescents. Indee...d, the field of child and adolescent PTSD and trauma is relatively young, although the knowledge base has increased substantially over the past 2 decades. Moreover, task force members recognize that mental health professionals may have many different perspectives on child and adolescent trauma, particularly in regard to the specific nature of its effects and what interventions may be most effective in reducing negative outcomes and enhancing adaptive functioning. Although we attempt to summarize here what is currently known about child and adolescent PTSD and trauma, we welcome ongoing discussion and novel perspectives, which help to advance the field.
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Research Article
PLOS ONE | https://doi.org/10.1371/journal.pone.0189770 January 2, 2018
This document updates recommendations for HIV testing by laboratories in the United States and offers approaches for reporting test results to persons ordering HIV tests and to public health authorities. The recommended algorithm is a sequence of tests used in combination to improve the accuracy of ...the laboratory diagnosis of HIV based on testing of serum or plasma specimens. The updated recommendations also include tests for HIV antigens and HIV nucleic acid because studies from populations at high risk for HIV demonstrate that antibody testing alone might miss a considerable percentage of HIV infections detectable by virologic tests
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This report addresses the impact of emergency shelter programs in the development of post-relief economies and in building incomes of affected populations. It provides a review and analysis of the available literature relevant to understanding the economic impact of emergency shelter programs, addit...ional research conducted by CHF International on income development of beneficiaries of emergency shelter programs, and the first steps toward rigorous and accurate measurement of the impact of these programs on the incomes of beneficiaries. Each of these analysis provides information useful to future programmers of relief assistance.
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The World Health Organization was requested by Member States to develop a global priority pathogens list (global PPL) of antibiotic-resistant bacteria to help in prioritizing the research and development (R&D) of new and effective antibiotic treatments. To date, the selection of pathogens for R&D ac...tivities has been largely guided by small and large pharmaceutical companies according to a variety of parameters, such as perceived/unmet medical need, pressure of investors, market size, scientific discovery potential, and availability of specific technologies. Previous PPLs, issued by the Centers for Disease Control and Prevention.
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This leaflet is intended to inform physicians — mainly GPs — and medical students on how to recognize a possible radiation injury. It is important to note that radiation injury has no special signs and symptoms. However, the combination of some of them may be typical of radiation injury.
Arabic... version available: http://www.who.int/ionizing_radiation/pub_meet/en/Arabicleaflet.pdf?ua=1
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навчальний посібник для керівників груп, плани занять, матеріали для занять та бланки
Group Leader Training Manuals, Lessons Plans, and Lessons Materials and Worksheets
In eastern and southern Africa
#EndAdolescentAIDS
July 2018
- A global call to action
- Case studies
- Blogs
- Next steps
J Acquir Immune Defic Syndr Volume 78, Supplement 1, August 15, 2018
Breast cancer. Just reading those words can make many women worry. And that’s natural. Nearly everyone knows someone touched by the disease.
But there is a lot of good news about breast cancer these days. Treatments keep getting better, and we know more than ever about ways to prevent the disease.... These eight simple steps can help lower the risk of breast cancer. Not every one applies to every woman, but together they
can have a big impact. Available in English, Spanish, Vietnamese
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