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.
more
Environment International Volume 86, January 2016, Pages 14-23
Climate change refers to long-term shifts in weather conditions and patterns of extreme weather events. It may lead to changes in health threat to human beings, multiplying existing health problems. This review examines the scientific e...vidences on the impact of climate change on human infectious diseases. It identifies research progress and gaps on how human society may respond to, adapt to, and prepare for the related changes. Based on a survey of related publications between 1990 and 2015, the terms used for literature selection reflect three aspects — the components of infectious diseases, climate variables, and selected infectious diseases. Humans' vulnerability to the potential health impacts by climate change is evident in literature. As an active agent, human beings may control the related health effects that may be effectively controlled through adopting proactive measures, including better understanding of the climate change patterns and of the compound disease-specific health effects, and effective allocation of technologies and resources to promote healthy lifestyles and public awareness. The following adaptation measures are recommended: 1) to go beyond empirical observations of the association between climate change and infectious diseases and develop more scientific explanations, 2) to improve the prediction of spatial–temporal process of climate change and the associated shifts in infectious diseases at various spatial and temporal scales, and 3) to establish locally effective early warning systems for the health effects of predicated climate change.
more
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.
more
Combined questionnaire Core
Due to the particular Amazonian situation of vectorial transmission based mostly on the wild cycle of Trypanosoma cruzi with diversity of triatomine vectors involved in effective transmission, and the variety of eco-epidemiological situations that facilitate such transmission, the countries of the A...mazon agreed that the development and strengthening of preventive actions based on comprehensive surveillance and detection of effective vectorial transmission, based on mandatory notification of acute or chronic cases, was required. In addition, it was recommended that surveillance and prevention and/or vector control actioDue to the particular Amazonian situation of vectorial transmission based mostly on the wild cycle of Trypanosoma cruzi with diversity of triatomine vectors involved in effective transmission, and the variety of eco-epidemiological situations that facilitate such transmission, the countries of the Amazon agreed that the development and strengthening of preventive actions based on comprehensive surveillance and detection of effective vectorial transmission, based on mandatory notification of acute or chronic cases, was required.
more
Over the ages, human societies have altered local ecosystems and modified regional climates. Today the human influence has attained a global scale. This reflects the recent rapid increase in population size, energy consumption, intensity of land use, international trade and travel, and other human a...ctivities. These global changes have heightened awareness that the long-term good health of populations depends on the continued stability of biosphere's ecological, physical and socioeconomic systems.
The world's climate system is an integral part of the complex of life-supporting processes. Like other large systems, the global climate system is coming under pressure from human activities.
This book seeks to describe the context and process of global climate change, its actual or likely impacts on health, and how human societies and their governments should respond with particular focus on the health sector.
more
El Salvador's response to tuberculosis control: A sustainability analysis
Multiple countries are reporting severe acute cases of hepatitis of unknown aetiology in children, in several
regions of the world. WHO has developed this clinical case report form (CRF) to support and facilitate reporting
of anonymized, patient-level data of acute hepatitis of unknown aetiology.
Expanding access to quality health services through task sharing
Progress in prevention and treatment is faltering around the world, putting millions of people in grave danger. Eastern Europe and central Asia, Latin America, and the Middle East and North Africa have all seen increases in annual HIV infections over several years. In Asia and the Pacific, UNAIDS da...ta now show new HIV infections are rising where they had been falling. Action to tackle the inequalities driving AIDS is urgently required to prevent millions of new HIV infections this decade and to end the AIDS pandemic
more
This annual report highlights the work of the WHO from January to June 2021 ( December 2021). The activities featured herein are by no means exhausted but implemented with technical and financial support through WHO in Nigeria; facilitated by its presence at all levels of governance (national, state..., local government, and wards).
more
This is the first edition of Empiric Antibiotic Guidelines, as a guidance to all medical practitioners at North Okklapa General & Teaching Hospital.
Antibiotics are critical in the management of infection and can have a significant impact in reducing morbidity and mortality. Emerging antimicrobia...l resistance has been identified as global challenge by the World Health Organization. Careful use of antibiotics targeted to likely pathogens is an important strategy in combating development of antimicrobial resistance.
more
La implementación de la presente Norma Nacional y Manual de Procedimientos Técnicos de la Leishmaniasis en el país, permitirá al personal de salud del sistema público y privado fortalecer sus capacidades técnicas y operativas a través de la estandarización y unificación de estrategias y acc...iones para mejorar la prevención, atención, control, vigilancia entomológica y epidemiológica de esta enfermedad de manera oportuna y eficiente. Así mismo promoverá el cumplimiento de la Gestión Participativa y de Atención en Salud a través de la participación e involucramiento de la sociedad civil en la adopción de conductas prevenibles y de atención oportuna, así como demandar mayor acceso a la salud a través de la abogacía ante las Autoridades Locales y Municipales para el fortalecimiento en la otorgación de recursos humanos, insumos, infraestructura y medicamentos para este fin.
more
Core Indicators 2019: Health Trends in the Americas starts with a demographic overview of the Americas to demonstrate how the Region has changed over 25 years. These key demographic indicators provide valuable context to better understand the population’s characteristics and their impact on health.... Brief narratives accompany the graphics to highlight important information.
more
The World Health Organization (WHO) recognizes the challenges countries face for maintaining their COVID-19 response while addressing competing public health challenges, conflicts, climate change and economic crises. WHO continues to support countries in adjusting COVID-19 strategies to reflect succ...esses to date and leverage what has been learned through national responses.
To assist national and global efforts to end the COVID-19 emergency worldwide, WHO updated the COVID-19 (Global Preparedness, Readiness and Response plan) in 2022 and outlined two strategic objectives.
more