This booklet presents key messages for action, summarized from a set of
chapters on different environmental health issues.
The One Health approach can help achieve progress and promotes synergies on national and global priorities by generating synergies at the human-animal-environmental interface. While evidence is still scare, it is likely that the approach is highly cost-effective and improves effectiveness of core pu...blic health systems, through reducing morbidity, mortality, and economic costs of disease outbreaks. It also contributes to economic development through strengthening public health systems at the human-animal-environment interface protects health, agricultural production, and
ecosystem services
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The 20th century was a period of unprecedented ecological change, with dramatic reductions in natural ecosystems and biodiversity and equally dramatic increases in people and domestic animals. Never before have so many animals been kept by so many people—and never before have so many opportunities... existed for pathogens to pass from wild and domestic animals through the biophysical environment to affect people causing zoonotic diseases or zoonoses. The result has been a worldwide increase in emerging zoonotic
diseases, outbreaks of epidemic zoonoses as well as a rise in foodborne zoonoses globally, and a troubling persistence of neglected zoonotic diseases in poor countries.
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This booklet presents key messages for action, summarized from a set of chapters on different environmental health issues, available at www.who.int/ ceh/publications/healthyenvironmentsforhealthychildren. The work is a result of an on-going partnership between WHO, UNEP and UNICEF in the area of chi...ldren’s environmental health, and seeks to update the 2002 joint publication “Children in the New Millennium: Environmental Impact on Health.”
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The new review paper, The Impacts of Climate Change on Health, identifies the extent to which increasing emissions, extreme weather and temperatures elevate health risks, from infectious disease to malnutrition, and assesses the associated health burden. It concludes that the health burden will exce...ed the level of demand that health systems are prepared for.
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The arrival and rapid spread of the mosquito-borne viral disease Chikungunya across the Americas is one of the most significant public health developments of recent years, preceding and mirroring the subsequent spread of Zika. Globalization in trade and travel can lead to the importation of these vi...ruses, but climatic conditions strongly affect the efficiency of transmission in local settings. In order to direct preparedness for future outbreaks, it is necessary to anticipate global regions that could become suitable for Chikungunya transmission. Here, we present global correlative niche models for autochthonous Chikungunya transmission. These models were used as the basis for projections under the representative concentration pathway (RCP) 4.5 and 8.5 climate change scenarios. In a further step, hazard maps, which account for population densities, were produced. The baseline models successfully delineate current areas of active Chikungunya transmission. Projections under the RCP 4.5 and 8.5 scenarios suggest the likelihood of expansion of transmission-suitable areas in many parts of the world, including China, sub-Saharan Africa, South America, the United States and continental Europe. The models presented here can be used to inform public health preparedness planning in a highly interconnected world.
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Lancet Planet Health 2020; 4: e271–79
This article provides an overview of the current and projected climate change risks and impacts to mental health and provides recommendations for priority actions to address the mental health consequences of climate change.
Tuberculosis (TB) is an infectious disease that usually affects the lungs, though it can affect any organ in the body. It can develop when bacteria spread through droplets in the air. TB can be fatal, but in many cases, TB is preventable and treatable. This report examines the human rights impact of... the prevalence of Tuberculosis (TB) and Multi-drug-resistant tuberculosis (MDR-TB) among the Indigenous San peoples of Namibia. Combining political economy and root-cause methodology, the report explores the socioeconomic factors that make the San vulnerable to TB and limit their access to adequate health services.
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En 2015, el 26% de los decesos de 5,9 millones de niños que murieron antes de cumplir los cinco años podría haberse prevenido
abordando los riesgos medioambientales; una impactante oportunidad perdida. El período prenatal y de la primera infancia
representa un escenario de particular vulnerabi...lidad, donde los peligros medioambientales pueden conducir al parto prematuro y otras complicaciones, y aumentar el riesgo de desarrollar una enfermedad de por vida, como enfermedades respiratorias, enfermedades cardiovasculares y cáncer. De este modo, el medio ambiente representa un factor importante en la salud infantil, así como una gran oportunidad de implementar mejoras, con efectos observados en cada región del mundo
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In 2015, 26% of the deaths of 5.9 million children who died before reaching their fifth birthday could have been prevented
through addressing environmental risks – a shocking missed opportunity. The prenatal and early childhood period represents
a window of particular vulnerability, where enviro...nmental hazards can lead to premature birth and other complications,
and increase lifelong disease risk including for respiratory disorders, cardiovascular disease and cancers. The environment
thus represents a major factor in children’s health, as well as a major opportunity for improvement, with effects seen in every
region of the world.
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Published: November 24, 2020 https://doi.org/10.1371/journal.pbio.3000938
Climate change is expected to have complex effects on infectious diseases, causing some to increase, others to decrease, and many to shift their distributions. There have been several important advances in understanding the ...role of climate and climate change on wildlife and human infectious disease dynamics over the past several years. This essay examines 3 major areas of advancement, which include improvements to mechanistic disease models, investigations into the importance of climate variability to disease dynamics, and understanding the consequences of thermal mismatches between host and parasites. Applying the new information derived from these advances to climate–disease models and addressing the pressing knowledge gaps that we identify should improve the capacity to predict how climate change will affect disease risk for both wildlife and humans.
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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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Water is the lifeblood of planetary health and human civilisation. As a critical source of fresh water, rivers underpin civilisations, past and present. However, rivers constantly change in response to environmental and human pressures. Protecting global river systems from climate change and other a...nthropogenic activities (e.g., mining, pollution, dam construction), and understanding the interactions with human health (e.g., through the spread of water-borne and infectious diseases) has become a critical concern.
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Este manual operativo determina los aspectos y las etapas primordiales de la ampliación programática del tratamiento preventivo de la tuberculosis, y proporciona herramientas de ejecución e instrumentos de trabajo para la adaptación al contexto local, así como indicadores de seguimiento y evalu...ación de la gestión. En él se destacan los elementos clave que deben tenerse en cuenta en la atención al paciente, la planificación nacional estratégica y la movilización de recursos
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