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 Guidelines: anatoxin-a and analogues, cylindrospermopsi...ns 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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Recent systematic reviews and meta-analysis of the impact of chemical-based mollusciciding (King et al., 2015, Sokolow et al., 2016) have concluded that regular mollusciciding is likely to contribute significantly towards elimination of schistosomiasis in high-risk areas. The WHO roadmap’s new foc...us on “transmission control, wherever possible” (WHO, 2012a) reinforces the need to promote intermediate-host snail control to prevent schistosomiasis transmission.
This operational manual is intended to facilitate the reintroduction of practices and protocols for use of molluscicides in the field in schistosomiasis control programmes. It is complemented by guidelines on the laboratory and field testing of the efficacy of molluscicides for schistosomiasis control (WHO, 2017 [in preparation]).
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The Operational guide: use of referral laboratories for the analysis of foodborne hazards in the Pacific aims to strengthen the food analysis capacity of Pacific Island countries and areas by identifying national and reference laboratories capable of testing for priority foodborne hazards. The Pacif...ic Island countries and areas are often vulnerable to food safety incidents and emergencies due to their geographical distribution and dependence on food imports. The guide outlines key considerations for selecting referral laboratories and submitting samples to them, enabling continuous improvement of food safety systems and providing safe food for all. The target audiences are health and food safety authorities.
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The document is intended to facilitate the detection, evaluation and management of incident EVD cases in Germany. It primarily addresses public health service staff and health care workers in hospitals, outpatient clinics and emergency services in Germany. It is a work in progress, intended to evolv...e over time. Updated 14 August 2015
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This update of the Guidelines for poison control, entitled Guidelines for establishing a poison centre, reflects the development of the role of poison centres in public health and the sound management of chemicals, described in section 1, and the opportunities provided by new technology. Assessments... carried out under the IHR show
continuing gaps in capacity for managing chemicals (2). In particular, many countries still lack access to poison
centre services (3). There is therefore demand for updated guidance.
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With its expert practical advice on security in situations of armed conflict, this updated set of guidelines will prove invaluable to humanitarian personnel working at the operational level. Following on from the success of the first edition, published in 1999, it addresses new and developing threat...s such as chemical, biological and nuclear hazards and includes new chapters on, among others, first aid, staying healthy on mission and how international humanitarian law protects humanitarian workers.
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The latest update (28 January 2021) includes the following addition and revision:
biosafety aspects for working with antigen-detecting rapid diagnostic test;
handling new variants of SARS-CoV-2 in the laboratory;
updated assay decontamination before disposal;
personal protectiv...e equipment (PPE) for specimen collection;
addressing chemical hazards and their safe disposal; and
the fourth edition of the WHO Laboratory Biosafety Manual (LBM4) is now available and the terminology in this guidance was aligned with the LBM4.
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Lancet Oncol 2022; 23: e251–312Published OnlineMay 9, 2022 https://doi.org/10.1016/S1470-2045(21)00720-8
In sub-Saharan Africa (SSA), urgent action is needed to curb a growing crisis in cancer incidence and mortality.
Without rapid interventions, data estimates show a major increase in cancer mo...rtality from 520 348 in 2020 to about
1 million deaths per year by 2030. Here, we detail the state of cancer in SSA, recommend key actions on the basis of
analysis, and highlight case studies and successful models that can be emulated, adapted, or improved across the
region to reduce the growing cancer crises. Recommended actions begin with the need to develop or update national
cancer control plans in each country. Plans must include childhood cancer plans, managing comorbidities such as
HIV and malnutrition, a reliable and predictable supply of medication, and the provision of psychosocial, supportive,
and palliative care. Plans should also engage traditional, complementary, and alternative medical practices employed
by more than 80% of SSA populations and pathways to reduce missed diagnoses and late referrals. More substantial
investment is needed in developing cancer registries and cancer diagnostics for core cancer tests.
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In the Region of the Americas, between epidemiological week (EW) 1 and EW 52 of 2018, a total of 560,586 cases of dengue were reported (incidence rate of 57.3 cases per 100,000 population), including 336 deaths. Of the total cases, 209,192 (37.3%) were laboratoryconfirmed and 3,535 (0.63%) were clas...sified as severe dengue. Cases reported in 2018 were higher than the total reported in 2017 but lower than the historical average reported in the previous 11 years (2006-2016) (Figure 1). Similarly, the proportion of cases of severe dengue and dengue with warning signs reported in 2018 was higher than the previous two years, but lower than the preceding ten years, and it remains below 1% which was reached in 2015.
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Snakebites are well-known medical emergencies in many parts of the world, especially in rural areas. Agricultural workers and children are the most affected. The incidence of snakebite mortality is particularly high in South-East Asia. Rational use of snake anti-venom can substantially reduce mortal...ity and morbidity due to snakebites. These guidelines are a revised and updated version of Regional Guidelines for the Management of snakebites published by the WHO Regional Office in South-East Asia in 2011. These guidelines aim to promote the rational management of snakebite cases in various health facilities where trained health functionaries and quality snake antivenom are available.
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A companion to the Child Friendly Schools Manual
WASH in Schools aims to improve the health and learning performance of school-aged children – and, by extension, that of their families – by reducing the incidence of water and sanitation-related diseases. Every child friendly school r...equires appropriate WASH initiatives that keep the school environment clean and free of smells and inhibit the transmission of harmful bacteria, viruses and parasites.
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Diabetes mellitus is one of the most common noncommunicable diseases worldwide. In the Eastern Mediterranean Region there has been a rapid increase in the incidence of diabetes mellitus and it is now the fourth leading cause of death. The increasing prevalence of diabetes mellitus, the emergence of ...diabetes complications as a cause of early morbidity and mortality, and the enormous and mounting burden on health care systems make diabetes a priority health concern. These guidelines provide up-to-date, reliable and balanced information for the prevention and care of diabetes mellitus in the Region. The information is evidence-based and clearly stated to facilitate the use of the guidelines in daily practice. They are intended to benefit physicians at primary, secondary and tertiary level, general practitioners, internists and family medicine specialists, clinical dieticians and nurses as well as policy-makers at ministries of health. They provide the information necessary for decision-making by health care providers and patients themselves about disease management in the most commonly encountered situations.
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On January 14-16, 2003, the Centers for Disease Control and Prevention (CDC) held a communications roundtable in Atlanta, Georgia, to explore hospitals' challenges in communicating with internal and external audiences in communitywide emergencies involving radioactive materials. The roundtable, Hosp...ital Communications in a Mass Casualty Radiological Incident, is part of CDC's effort to help prepare the nation's public health community for threats of terrorism.
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This report assesses the impact of the conflict in Ukraine and its implications for organized crime and security-related issues for neighbouring countries, with a focus on Moldova.
These include:
Organized crime and illicit trafficking (including trafficking in persons, drugs, arms, illicit toba...cco, and other goods); Cybercrimes and fraud; Disinformation and propaganda; and Chemical, Biological, Radiological, and Nuclear (CBRN) threats.
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Globally, 311,000 women die of cervical cancer every year, 85 percent of them
in resource limited regions of the world. To address this grave threat to women,
the WHO made a call to action in 2018, resulting in accelerated plans to improve
cervical cancer control under the elimination threshold w...ith respect to cervical
cancer incidence. As part of WHO’s approach to cervical cancer control, availability of high quality,
affordable medical devices for HPV screening, and treatment of precancerous
lesions in low resource settings is indispensable.
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Thailand is exposed to flooding, landslides, drought, earthquakes, tsunamis, heat waves, forest fires, and epidemics. Thailand is also exposed to technological hazards such as chemical accidents. Flooding is the natural hazard with the most significant impact on human life, livelihoods, and the econ...omy for the country. The occurrence of droughts has increased in recent years due to the effects of the El Niño-Southern Oscillation (ENSO) cycle, which brings drier-than-average rainfall conditions. Drought has adversely impacted the country’s agriculture sector, which employs around one third of the country’s workforce.
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The ongoing COVID-19 pandemic presents an exceptional and unprecedented challenge for competent authoritiesa with responsibilities for national food safety control systemsb to continue conducting routine functions and activities in accordance with national regulations... and international recommendations. In many countries, competent authority staff are largely working from home, teleworking being the normal practice, and all face-to-face meetings cancelled or rescheduled as teleconferences. It is challenging to maintain, without interruption, routine activities such as the inspection of food business operations, certifying exports, control of imported foods, monitoring and surveillance of the safety of the food supply chain, sampling and analysis of food, managing food incidents, providing advice on food safety and food regulations for the food industry, and communicating on food safety issues with the public.
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The Guideline for Disinfection and Sterilization in Healthcare Facilities, 2008, presents evidence-
based recommendations on the preferred methods for cleaning, disinfection and sterilization of patient-
care medical devices and for cleaning and disinfecting the healthcare environment. This docume...nt
supercedes the relevant sections contained in the 1985 Centers for Disease Control (CDC) Guideline for
Handwashing and Environmental Control. 1 Because maximum effectiveness from disinfection and
sterilization results from first cleaning and removing organic and inorganic materials, this document also
reviews cleaning methods. The chemical disinfectants discussed for patient-care equipment include
alcohols, glutaraldehyde, formaldehyde, hydrogen peroxide, iodophors, ortho-phthalaldehyde, peracetic
acid, phenolics, quaternary ammonium compounds, and chlorine. The choice of disinfectant,
concentration, and exposure time is based on the risk for infection associated with use of the equipment
and other factors discussed in this guideline. The sterilization methods discussed include steam
sterilization, ethylene oxide (ETO), hydrogen peroxide gas plasma, and liquid peracetic acid. When
properly used, these cleaning, disinfection, and sterilization processes can reduce the risk for infection
associated with use of invasive and noninvasive medical and surgical devices. However, for these
processes to be effective, health-care workers should adhere strictly to the cleaning, disinfection, and
sterilization recommendations in this document and to instructions on product labels.
LAST UPDATE 2019
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In the last decade, Timor-Leste has made remarkable progress in strengthening its health system and improving the health status of its population. This has resulted in an increased life expectancy, and the achievement of Millennium Development Goals such as a reduction in infant and under-five morta...lity, an improvement in maternal and child health outcomes, and an increase in immunization coverage. Further, the country has successfully eliminated infectious diseases such as polio, measles, and maternal and neonatal tetanus. There is full political commitment to reducing the incidence of tuberculosis (TB) by 80% and the number of deaths due to TB by 90% by 2030. The country has made great progress in the context of the pandemic, having established numerous quarantine facilities/isolation centres; trained health-care workers; streamlined the procurement and supply of medicines, consumables, personal protective equipment and other equipment; and strengthened the capacity in critical care across secondary and tertiary health care, to better respond to future pandemics and other disaster situations.
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The WHO continuously reviews available data on SARS-CoV-2 variants of concern. For this version, the global epidemiological
situation of the COVID-19 pandemic as of 21 January 2022 – at a time when the Omicron VOC had been identified in 171
countries across all six WHO Regions and was rapidly re...placing Delta worldwide – was considered Omicron has a substantial growth advantage, higher secondary attack rates and a higher observed reproduction number than Delta.
There is now significant evidence that immune evasion contributes to the rapid spread of Omicron. Other factors may be a shorter
serial interval (by about 0.8 to 1.2 days compared to Delta) and potential increased intrinsic transmission fitness . There is
growing evidence that with Omicron, there is lower vaccine effectiveness (VE) against infection and symptomatic disease soon after vaccination compared to Delta. There is also evidence of accelerated waning of VE over time of the primary series against infection and symptomatic disease for the studied vaccines. Further studies are required to better understand the drivers of transmission and declining incidence in various settings. These factors include the intrinsic transmission fitness properties of the virus, degree of immune evasion, vaccination coverage and level of vaccine-derived and post-infection immunity, levels of social mixing and degree of application of public health and social measures (PHSM).
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