Dengue is a mosquito-borne viral disease that occurs mainly in the tropics and subtropics but has a high potential to spread to new areas. Dengue infections are climate sensitive, so it is important to better understand how changing climate factors affect the potential for geographic spread and futu...re dengue epidemics. Vectorial capacity (VC) describes a vector's propensity to transmit dengue taking into account human, virus, and vector interactions. VC is highly temperature dependent, but most dengue models only take mean temperature values into account. Recent evidence shows that diurnal temperature range (DTR) plays an important role in influencing the behavior of the primary dengue vector Aedes aegypti. In this study, we used relative VC to estimate dengue epidemic potential (DEP) based on the temperature and DTR dependence of the parameters of A. aegypti. We found a strong temperature dependence of DEP; it peaked at a mean temperature of 29.3°C when DTR was 0°C and at 20°C when DTR was 20°C. Increasing average temperatures up to 29°C led to an increased DEP, but temperatures above 29°C reduced DEP. In tropical areas where the mean temperatures are close to 29°C, a small DTR increased DEP while a large DTR reduced it. In cold to temperate or extremely hot climates where the mean temperatures are far from 29°C, increasing DTR was associated with increasing DEP. Incorporating these findings using historical and predicted temperature and DTR over a two hundred year period (1901-2099), we found an increasing trend of global DEP in temperate regions. Small increases in DEP were observed over the last 100 years and large increases are expected by the end of this century in temperate Northern Hemisphere regions using climate change projections. These findings illustrate the importance of including DTR when mapping DEP based on VC.
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In the area of nutrition and HIV, children deserve special attention because of their additional needs to ensure growth and development and their dependency on adults for adequate care. It was therefore proposed to first develop guidelines for children and thereafter consider a similar approach for... other specific groups.
The content of these guidelines acknowledges that wasting and undernutrition in HIV-infected children reflect a series of failures within the health system, the home and community and not just a biological process related to virus and host interactions. In trying to protect the nutritional well-being or reverse the undernutrition experienced by infected children, issues of food insecurity, food quantity and quality as well as absorption and digestion of nutrients are considered. Interventions are proposed that are practical and feasible in resource-poor settings and offer a prospect for clinical improvement.
The guidelines do not cover the feeding of infants 0 to 6 months old, because the specialised care in this age group is already addressed in other WHO guidelines and documents.
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Fully functioning water, sanitation, hygiene (WASH) and health care waste management services are a critical aspect of infection prevention and control (IPC) practices, and ensuring patient safety and quality of care. Such services are also essential for creating an environment that supports the dig...nity and human rights of all care seekers, especially mothers, newborns, children and care providers.
WASH and waste services are also critical for preventing and effectively responding to disease outbreaks. The COVID-19 pandemic has exposed gaps in these basic services (Box 1). These gaps threaten the safety of patients and caregivers, and have environmental consequences, especially as a result of large increases in plastic health care waste. In short, WASH is a critical foundation for improving quality across the health system (1).
Many facilities lack plans and budgets for WASH, which has impacts on IPC. This lack of services, and of systems to improve them, compromises the ability to provide safe and quality care, and places health care providers and those seeking care at substantial risk of infection and loss of dignity. Unhygienic health care facilities without drinking water or functional toilets are also a disincentive to seeking care and undermine staff morale – these factors can have a critical impact on controlling infectious disease outbreaks.
Climate change and its impacts on WASH and health services, gender-specific needs, and equity in service provision and management all require rigorous attention, adaptable tools and regular monitoring.
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La fourniture de sang et de produits sanguins sûrs et efficaces pour la transfusion ou la fabrication d’autres produits sanguins fait intervenir un certain nombre de processus, allant de la sélection des donneurs de sang et de la collecte, au traitement et au dépistage des dons de sang ainsi qu...’à l’analyse des échantillons des malades, à la délivrance de sang compatible et à son administration au patient. Il existe un risque d’erreur à chaque étape de la « chaîne de transfusion », et une défaillance à une quelconque de ces étapes peut avoir des conséquences graves pour les receveurs du sang ou des produits sanguins. Si la transfusion sanguine peut sauver des vies, elle comporte aussi des risques, en particulier la transmission des infections par le sang.
Le dépistage des infections transmissibles par transfusion (ITT) en vue d’exclure les dons de sang présentant un risque de transmettre une infection du donneur aux receveurs est une étape critique du processus visant à garantir au mieux la sécurité des transfusions. Un dépistage efficace des agents transmissibles par le sang les plus courants et les plus dangereux peut réduire le risque de transmission à des niveaux très faibles.
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Healthcare-associated infections (HAI) are a significant burden globally, with millions of patients affected each year. These infections affect both high- and limited-resource healthcare settings, but in limited-resource settings, rates are approximately twice as high as high-resource settings (15 o...ut of every 100 patients versus 7 out of every 100 patients). Furthermore, rates of infections within certain patient populations are significantly higher in limited-resource settings, including surgical patients, patients in intensive-care units (ICU) and neonatal units. It is well documented that environmental contamination plays a role in the transmission of HAIs in healthcare settings. Therefore, environmental cleaning is a fundamental intervention for infection prevention and control (IPC).It is a multifaceted intervention that involves cleaning and disinfection (when indicated) of the environment alongside other key program elements to support successful implementation (e.g., leadership support, training, monitoring, and feedback mechanisms). To be effective, environmental cleaning activities must be implemented within the framework of the facility IPC program, and not as a standalone intervention. It is also essential that IPC programs advocate for and work with facility administration and government officials to budget, operate and maintain adequate water, sanitation and hygiene (WASH) infrastructure to ensure that environmental cleaning can be performed according to best practices.
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SARS-CoV-2 infections among children and adolescents cause less severe illness and fewer deaths compared to adults. While a less severe course of infection is a positive outcome, there are concerns that mild symptoms may have led to less testing, resulting in fewer identified cases of COVID-19 in ch...ildren. If children with mild or no symptoms transmit the disease, they may act as drivers of transmission within their communities. Understanding symptoms, infectivity and patterns of SARS-CoV-2 transmission in children and adolescents is essential for developing, adapting and improving control measures for COVID-19 across all ages. This is a summary of the current knowledge around SARS-CoV-2 infection acquisition and transmission and COVID-19 disease symptoms in children and adolescents. It aims to inform decisions, based on local contexts, on how to best keep schools, kindergarten and day-care facilities open and what advice to apply to intergenerational mixing.
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In response to the COVID-19 outbreak this risk communication package for healthcare facilities provides healthcare workers (HCWs) and healthcare facility management with the information, procedures, and tools required to safely and effectively work. The package contains a series of simplified messag...es and reminders based on WHO's more in-depth technical guidance on infection prevention and control in healthcare facilities in the context of COVID-19
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The present Consolidated guidelines include a comprehensive set of WHO recommendations for the treatment and care of DR-TB, derived from these WHO guidelines documents. The consolidated guidelines include policy recommendations on treatment regimens for isoniazid-resistant TB (Hr-TB) and MDR/RR-TB, ...including longer and shorter regimens, culture monitoring of patients on treatment, the timing of antiretroviral therapy (ART) in MDR/RR-TB patients infected with the human immunodeficiency virus (HIV), use of surgery for patients receiving MDR-TB treatment, and optimal models of patient support and care.
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Occupational health and safety programmes aim to prevent diseases and injuries arising out of, linked with or occurring in the course of work, while improving the quality and safety of care, safeguarding the health workforce and promoting environmental sustainability in the health sector.
This gu...ide provides an overview of the key elements of occupational health and safety programmes for health workers at national, subnational and facility levels, as well as advice for the development and implementation of such programmes. Health workers exposure risk assessment and management in the context of COVID-19 virus
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There is paucity of data on the burden and specific drivers operative in the pathogenesis of chronic obstructive pulmonary disease (COPD) in the African setting and populations. Lack of awareness and inadequate knowledge on the aetio-pathogenesis of the disease together with inadequate capacity for ...COPD care contributes to preventive and management challenges. Thus, the majority of patients with COPD are misdiagnosed, misclassified and mismanaged or undertreated. With the struggling improvement in the quality of healthcare in Africa, studies conducted over the last 10 years indicates the rising trends in both the risk factors and the burden of COPD. The role of new risk factors such as indoor pollution, infections with human immunodeficiency virus (HIV) and pulmonary tuberculosis (TB), in the pathogenesis of COPD in Africa is increasingly being recognized. This literature review attempts to collect and synthesize information that could be useful in improving COPD care and informing the governments to take appropriate actions for prevention, diagnosis and management of COPD in Africa.
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The WHO global health sector strategy on sexually
transmitted infections, 2016–2021 (1) includes country
milestones for achievement by 2020 and global
targets for achievement by 2030. In addition, countries
were called to identify national sexually transmitted
infection (STI) targets for... 2020 and beyond. Reporting
on these milestones, country targets and progress on
implementation at the country level is due as a report to
the World Health Assembly in 2021 (1)
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The content of these guidelines acknowledges that wasting and undernutrition in HIV-infected children reflect a series of failures within the health system, the home and community and not just a biological process related to virus and host interactions.
The guidelines do not cover the feeding of i...nfants 0 to 6 months old, because the specialised care in this age group is already addressed in other WHO guidelines and documents.
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Full Report.
In response to a call by the United Nations Secretary-General and the Governments of Guinea, Liberia and Sierra Leone, an international team conducted an Ebola Recovery Assessment. The aim was to contribute towards laying the foundation for short-, medium- and long-term recovery while ...the medical emergency response continues to tackle the epidemic. This report is a contribution to ongoing efforts by the Governments of Guinea, Liberia and Sierra Leone to design their national Ebola virus disease recovery strategies
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Ce programme vous aidera, vous et votre communauté, à comprendre la science du virus qui cause le COVID-19 et d'autres virus similaires. Il vous aidera à comprendre comment ce virus vous affecte ou pourrait vous affecter à l'avenir. Elle vous aidera à comprendre les mesures que vous pouvez pren...dre pour assurer votre sécurité et celle de votre communauté.
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31 Oct 2022 his plan outlines how the ACT-Accelerator will support countries as the world transitions to long-term COVID-19 control.
Recognizing the evolving nature of the COVID-19 virus and pandemic, the plan outlines changes to ACT-A’s set-up and ways of working, to ensure countries co...ntinue to have access to COVID-19 tools in the longer term, while maintaining the coalition’s readiness to help address future disease surges.
Developed through a consultative process with ACT-A agencies, donors, industry partners, civil society organizations (CSOs) and Facilitation Council members, the plan summarizes priority areas of focus for the partnership’s pillars, coordination mechanisms and other core functions, and highlights the work to be maintained, transitioned, sunset, or kept on standby.
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Orientations provisoires, 28 janvier 2021
Dans cette version mise à jour des orientations sur la sécurité biologique en laboratoire en rapport avec le SARS-CoV-2, le virus responsable de la maladie à coronavirus 2019 (COVID-19), les points suivants ont été ajoutés : aspects de... sécurité biologique relatifs à la réalisation des tests diagnostiques rapides antigéniques, manipulation des nouveaux variants du SARS-CoV-2 au laboratoire, mise à jour de la décontamination des tests avant leur élimination, équipement de protection individuelle (EPI) pour le prélèvement d’échantillons et, même s’ils ne concernent pas directement la sécurité biologique, dangers chimiques et leur élimination en toute sécurité.
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BMJ Global Health, Vol.5 No. 12Spatial subdivision of the camp (‘sectoring’) was able to ‘flatten the curve’, reducing peak infection by up to 70% and delaying peak infection by up to several months. The use of face masks coupled with the efficient isolation of infected individuals reduced t...he overall incidence of infection, and sometimes averted epidemics altogether. These interventions must be implemented quickly in order to be maximally effective. Lockdowns had only small effects on COVID-19 dynamics.
Conclusions
Agent-based models are powerful tools for forecasting the spread of disease in spatially structured and heterogeneous populations. Our findings suggest that feasible interventions can slow the spread of COVID-19 in a refugee camp setting, and provide an evidence base for camp managers planning intervention strategies. Our model can be modified to study other closed populations at risk from COVID-19 or future epidemics.
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9 April 2020
The COVID-19 pandemic is presenting States in Europe with an extraordinary and unprecedented public health emergency. In response, States are taking necessary and legitimate measures to prevent the spread of the virus and to protect their populations. Some of these measures have been... taken within the framework of a declared state of emergency, based on specific national provisions governing emergency situations.
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This curriculum will help you, and your community, understand the science of the virus that causes COVID-19 and other viruses like it. It will help you to figure out how this virus is impacting or affecting you or may impact you in the future. It will help you to understand the actions that you can ...take to keep yourself and your community safe.
It is available in 15 languages. Download for free at the website
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The Creditor Reporting System was analysed for official development assistance funding disbursements towards TB control in 11 conflict-affectedstates, 17 non-conflict-affected fragile states and 38 comparable non-fragile states. The amounts of funding, funding relative to burden, funding relative to... malaria and human immunodeficiency virus (HIV) control, disbursements relative to commitments, sources of funding as well as funding activities were extracted and analysed.
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