Epidemiologisches Bulletin ; 4/2022
After 100 years of chemotherapy with impractical and toxic drugs, an oral cure for human African trypanosomiasis (HAT) is available: Fexinidazole. In this case, we review the history of drug discovery for HAT with special emphasis on the discovery, pre-clinical development, and operational challenge...s of the clinical trials of fexinidazole. The screening of the Drugs for Neglected Diseases initiative (DNDi) HAT-library by the Swiss TPH had singled out fexinidazole, originally developed by Hoechst (now Sanofi), as the most promising of a series of over 800 nitroimidazoles and related molecules. In cell culture, fexinidazole has an IC50 of around 1 µM against Trypanosoma brucei and is more than 100-fold less toxic to mammalian cells. In the mouse model, fexinidazole cures both the first, haemolymphatic, and the second, meningoencephalitic stage of the infection, the latter at 100 mg/kg twice daily for 5 days. In patients, the clinical trials managed by DNDi and supported by Swiss TPH mainly conducted in the Democratic Republic of the Congo demonstrated that oral fexinidazole is safe and effective for use against first- and early second-stage sleeping sickness. Based on the positive opinion issued by the European Medicines Agency in 2018, the WHO has released new interim guidelines for the treatment of HAT including fexinidazole as the new therapy for first-stage and non-severe second-stage sleeping sickness caused by Trypanosoma brucei gambiense (gHAT). This greatly facilitates the diagnosis and treatment algorithm for gHAT, increasing the attainable coverage and paving the way towards the envisaged goal of zero transmission by 2030.
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These WHO interim recommendations on the use of the Pfizer – BioNTech BNT162b2 vaccine against Covid-19 were developed on the basis of advice issued by the Strategic Advisory Group of Experts on Immunization (SAGE) and the evidence summary included in the background document referenced below.
fir...st issued 8 January 2021, updated 15 June 2021, updated 19 November 2021, updated 21 January 2022, updated 18 August 2022. Available in other languages https://apps.who.int/iris/handle/10665/361720
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The COVID-19 pandemic has impacted the world and consequently increased MHPSS needs across various contexts. While National Societies respond to the rising mental health and psychosocial support needs, they are also adapting to and implementing remote support, such as telephone hotlines or other onl...ine services. Accordingly, many trainings in psychological first aid (PFA) of staff and volunteers have moved to online platforms.
Throughout the pandemic, the PS Centre developed online approaches, guidances, adaptable tools, videos, podcasts, and other materials on MHPSS. This was to ensure easy access to tools and resources that assist National Societies in their training efforts in MHPSS during COVID-19.
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Weekly Epidemiological Record No 9, 2022, 97, 61–80
This position paper supersedes the 2016 publication, “Malaria vaccine: WHO position paper-2016.”1 It includes the updated WHO recommendations on the wider use of the RTS,S/AS01 vaccine for the reduction of malaria morbidity and mortality in ...children living in areas of moderate to high malaria transmission. It also incorporates findings from the evaluation of the WHO-coordinated Malaria Vaccine Implementation Programme (MVIP), recommended by SAGE and MPAG in 2015, and from additional studies since 2015.
This paper does not include findings on vaccine efficacy in infants first vaccinated at 6–12 weeks of age. Because of the lower vaccine efficacy observed in this age category, WHO did not recommend pilot implementation or RTS,S/AS01 vaccine introduction for these young infants. Recommendations2 on the use of RTS,S/AS01 vaccine were discussed by SAGE and MPAG during a joint session in October 2021; evidence presented at the meeting can be accessed at https://terrance.who.int/mediacentre/data/ sage/SAGE_eYB_Oct2021.pdf
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March 2022. This report on good practices to combat AMR focuses on activities across human, animal, and environmental health in European countries. The report provides a description of practices, how they were implemented, achievements, and why the practice was unique.
Operation update 01/04/2022
The goal of the global outbreak response for monkeypox is to stop human-to-human transmission of monkeypox, with a priority focus on communities at high risk of exposure which may differ according to context, and to effectively use strong public health measures to prevent onward spread of the diseas...e. Judicious use of vaccines can support this response. This interim guidance, developed with the advice and support of the Strategic Advisory Group of Experts (SAGE) Working Group on smallpox and monkeypox vaccines, provides the first WHO recommendations on vaccines and immunization for monkeypox. Key points follow.
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Children’s mental health is top concern for Ukrainian parents, new World Vision report finds; Studies show 22 per cent of people in conflict zones suffer mental disorders; Prevention programs must be urgently prioritised
Billions of people are at risk of preventable death and illness from extreme heat. The Global Heat Health Information Network is helping to increase awareness and capacity to better manage and adapt to the health risks of dangerously hot weather in a changing climate.
Poster Washing hands (child-friendly)
Since the first edition of the CDAC snapshot of communication, community engagement and accountability (CCEA) across the Ukraine response was published in May 2022, a conscious effort has been made by international, national and local responders to ramp up CCEA action. Progress has been made in esta...blishing coordination mechanisms and launching activities, particularly around accountability to affected people (AAP). As CCEA work continues to scale up on the ground, a greater focus and more effort are still needed on community-facing information and two-way communication; this should be accorded a higher priority than at present.
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El dengue es una enfermedad vírica transmitida por mosquitos que en los últimos años se ha propagado rápidamente a todas las regiones de la OMS. El virus del dengue se transmite a través de mosquitos hembra principalmente de la especie Aedes aegypti y, en menor grado, de la especie Ae. albopict...us. Estos mosquitos también son vectores de los virus de la fiebre chikungunya, la fiebre amarilla y el Zika. La enfermedad está muy extendida en los trópicos, con variaciones locales en el riesgo que dependen de los parámetros climáticos y de los factores sociales y ambientales.
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