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1
Urbanization, land use, global trade and industrialization have led to profound and negative impacts on nature, biodiversity and ecosystems across the world. The ongoing depletion of natural resources not only afects environmental conditions but also has an enormous impact on the well-being and secu
...
rity of societies.
This report provides an overview of the impacts of the natural environment on human health. It presents the ways nature and ecosystems can support and protect health and well-being, and describes how nature degradation and loss of biodiversity can threaten human health.
more
Phil. Trans. R. Soc. B (2010) 365, 2959–2971; doi:10.1098/rstb.2010.0143.
Agricultural ecosystems provide humans with food, forage, bioenergy and pharmaceuticals and are essential to human wellbeing. These systems rely on ecosystem services provided by natural ecosystems, including pollination, b
...
iological pest control, maintenance of soil structure and fertility, nutrient cycling and hydrological services. Preliminary assessments indicate that the value of these ecosystem services to agriculture is enormous and often underappreciated. Agroecosystems also produce a variety of ecosystem services, such as regulation of soil and water quality, carbon sequestration, support for biodiversity and cultural services. Depending on management practices, agriculture can also be the source of numerous disservices, including loss of wildlife habitat, nutrient runoff, sedimentation of waterways, greenhouse gas emissions, and pesticide poisoning of humans and non-target species. The tradeoffs that may occur between provisioning services and other ecosystem services and disservices should be evaluated in terms of spatial scale, temporal scale and reversibility. As more effective methods for valuing ecosystem services become available, the potential for ‘win–win’ scenarios increases. Under all scenarios, appropriate agricultural management practices are critical to realizing the benefits of ecosystem services and reducing disservices from agricultural activities.
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Agriculture is highly exposed to climate change, as farming activities directly depend on climatic conditions. Agriculture also contributes to climate change through the release of greenhouse gases into the atmosphere. Two powerful greenhouse gases are by-products of agricultural activity:
Methan
...
e (CH4) – from livestock digestion processes and stored animal manure;
Nitrous oxide (N2O) – from organic and mineral nitrogen fertilisers.
However, agriculture can also contribute to climate change mitigation by reducing greenhouse gas emissions and by sequestering carbon while maintaining food production.
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This is the ninth paper in our series, “Community Health Workers at the Dawn of a New Era”. Community health workers (CHWs) are in an intermediary position between the health system and the community. While this position provides CHWs with a good platform to improve community health, a major cha
...
llenge in large-scale CHW programmes is the need for CHWs to establish and maintain benefcial relationships with both sets of actors, who may have diferent expectations and needs. This paper focuses on the quality of CHW relationships with actors at the local level of the national health system and with communities.
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This bi-weekly brief details the latest developments in scientific knowledge and public health policy from around the world as well as updates to the COVID-19-related guidance from Africa CDC, WHO and other public health agencies.
Food environments are usually defined as the settings with all the different types of
food made available and accessible to people as they go about their daily lives.
That is, the range of food in supermarkets, small retail outlets, wet markets, street
food stalls, coffee shops, tea houses, s
...
chool canteens, restaurants, and all the other
venues where people buy and eat food. These environments differ enormously depending on the context. They can be extensive and diverse, with a seemingly endless array of options and price ranges, or they can be sparse, with very few options on offer. Because they determine what food consumers can access at a given moment in time, at what price, and with what degree of convenience, food environments both constrain and prompt the consumer’s choice.Food environments are influenced by the food systems which supply them, and vice versa. Food systems encompass the entire range of activities, people and institutions involved in the production, processing,
marketing, consumption and disposal of food (FAO, 2013). They include but are not limited to food supply chains. Making food systems nutrition-sensitive can contribute to addressing all forms of malnutrition, as food systems determine whether the food needed for good nutrition are available, affordable, acceptable and of adequate
quantity and quality. How closely food systems and food environments are interrelated and interdependent, and the degree to which external factors affect nutrition outcomes, varies from setting to setting.Many of today’s food systems
and food environments are challenged in supporting consumer choices that are
consistent with healthy diets and good nutrition. Consumers are not making choices based on nutrition and health, and poor diet is now the number one risk factor for death and disability worldwide (GBD, 2015). Food systems that do not enable healthy diets are increasingly recognized as an underlying cause of malnutrition (GLOPAN, 2016), and malnutrition, irrespective of form, has a huge cost. Economic costs associated with undernutrition are estimated at $1-2 trillion per year, about 2-3% of global GDP (FAO, 2013); the global economic cost of obesity and associated diet-related non-communicable diseases is estimated at $2 trillion per year, about 2.8% of global GDP (McKinsey, 2014). Influencing food environments for promoting healthy diets is an emerging strategy to address today’s nutrition challenges.
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21 January 2022
The overall threat posed by Omicron largely depends on four key questions: (i) how transmissible the variant is; (ii) how well vaccines and prior infection protect against infection, transmission, clinical disease and death; (iii) how virulent the variant is compared to other varian
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ts; and (iv) how populations understand these dynamics, perceive risk and follow control measures, including public health and social measures (PHSM).
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The COVID-19 pandemic arrived in an evolving epidemiological context where some countries are experiencing a progressive decrease in HIV positivity in their testing programme as they are moving closer to the first 95 target. Distinguishing changes in HIV testing services due to the COVID-19 pandemic
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from those resulting from evolving HIV testing strategies is crucial for adapting services and helping countries define their strategic mix of testing options moving forward. There is a need to focus, prioritize and plan for strategic efforts to prevent going further off the track toward achieving global targets and goals.
To support these efforts, WHO in partnership with ministries of health conducted an in-depth analysis of HIV testing services and antiretroviral therapy (ART) initiation prior to and during reported COVID-19 disruptions. Additional publicly available Global Fund and PEPFAR data was also reviewed and analysed. This analysis, and coordination with ministries of health, identified key service delivery adaptations utilized during COVID-19-related disruptions and formed the basis of this strategic guide.
This document focuses on current country needs, as well as plans for prioritization and potential surge support needs in the event of future disruptions. Although the data and implications are specific to sub-Saharan Africa, key principles and lessons can be applied elsewhere.
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Why bold action against inequalities is needed to en AIDS, stop COVID-19 and prepare for future pandemics
Global and Regional Data 1 December 2021; The 90–90–90 targets were missed, but not by much. At the end of 2020, 84% of people living with HIV knew their HIV status, 87% of people living with HIV who knew their HIV status were accessing antiretroviral therapy, and 90% of people on treatment were
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virally suppressed.
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Joint actions by the Global Fund and UNAIDS are guided by a strong alignment of strategies, goals and targets. UNAIDS has worked with all stakeholders to set a common agenda and targets within the Global AIDS Strategy 2021–2026, and the United Nations General Assembly confirmed this strategy and i
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ts ambitious targets within its 2021 Political Declaration on HIV and AIDS: Ending Inequalities and Getting on Track to End AIDS by 2030.
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Global guidance on criteria and processes for validation: elimination of mother-to-child transmission of HIV, syphilis and hepatitis B virus
EMTCT Global Validation Advisory Committee, Global HIV, Hepatitis and Sexually Transmitted Infections Programmes
World Health Organization WHO
(2021)
C_WHO
Validation of elimination of mother-to-child transmission, or vertical transmission, of HIV, syphilis and hepatitis B virus (HBV), is an attestation that a country has successfully met standard criteria for elimination, or for being at 1 of the 3 levels of achievement on the ‘Path to Elimination
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while delivering quality services for women, girls and their children, through the life-course, respecting human rights and ensuring gender equality and community engagement.
This document, the third version, adds on EMTCT of hepatitis B virus (HBV), bringing together a package of interventions and metrics to support integrated management and monitoring of vertical transmission across a wide range of epidemiological and programmatic contexts.
This document, the third version, adds on EMTCT of hepatitis B virus (HBV), bringing together a package of interventions and metrics to support integrated management and monitoring of vertical transmission across a wide range of epidemiological and programmatic contexts.
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This publication provides managers with guidance on how to create basic HIV prevention cascades as a starting point to enhance their ability to monitor and improve their programming and to facilitate comparisons of programme effectiveness across sites.
For most people in displacement contexts, there are simply not enough vaccines available in the places where they are hosted: 85% of refugees are hosted in lower- and middle-income countries, while in the first six months of this year 85% of vaccines went to wealthy countries; lower- and middle inco
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me countries have still received only a fraction of the vaccine doses they require.3 Shortages in these countries can also pose particular risks to vaccination campaigns aimed at displaced populations, as they can result in them being deprioritized.
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The WHO End TB Strategy aims to end the global TB epidemic by 2030, in alignment with Goal 3 of the United Nations (UN) Sustainable Development Goals (SDGs). Member States of the World Health Organization (WHO) and the UN committed to ending the TB epidemic through adoption of WHO’s End TB Strateg
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y and the UN SDGs in 2014 and 2015, respectivel
Almost half of the deaths worldwide caused by TB in 2019 occurred in the WHO South-East Asia Region, home to around a quarter of the global population. Maintaining robust progress in this Region is therefore essential if the global goal of ending the TB epidemic is to be realized. Despite substantial gains made in the Region, the threat to
health worldwide posed by the COVID-19 pandemic has the potential to reverse these gains and eclipse the focus on the global TB emergency.
While continuing to tackle COVID-19-related challenges, countries will need to rapidly and urgently deploy supplementary measures to address the large numbers of missed cases, poor treatment outcomes and, potentially, a higher TB burden.
The Regional Strategic Plan towards Ending TB in the Region 2021–2025 clearly articulates priority interventions, analyses the challenges, bottlenecks and opportunities, and focuses on implementation considerations in the Region.
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This document synthesizes key elements of the World Health Organization (WHO) normative guidance on health policy and system support for community health worker (CHW) programmes and their application for HIV programmes. Building on relevant elements of HIV guidelines, tools and evidence identified b
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y experts, it provides recommendations on tasks and roles that can be performed by CHWs (including for HIV), identifies the policy and system supports to optimize CHW performance, and gives examples of best practice. Its purpose is to inform the optimal design and delivery of CHW programmes targeting – either specifically or as part of a broader approach – the scale-up and sustainability of HIV services.
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WHO is launching a “Revised edition, 2021” for the Caring for women subjected to violence: A WHO training curriculum for health-care providers today. The revised edition includes 4 new modules three of which are for health managers to assess and strengthen health facility readiness and one modul
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e, which is for managers and providers to support prevention of violence against women. The earlier content published in 2019 remains unchanged. The 2021 edition is aimed at creating an enabling health systems environment for health workers to provide quality care to women subjected to violence.
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