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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As of 6:00 PM, 21 November 2013, 4,011 individuals were reported dead, 18,567 injured and 1,602 are still missing
Further analysis of the 2011 Nepal Demographic and Health Survey
New and updated information.
Adverse health effects of hot weather and heat-waves are largely preventable. Prevention requires a portfolio of actions at different levels:from health system preparedness, coordinated with meteorological early warning systems, to timely public ... and medical advice andimprovements to housing and urban planning. This publication offers detailed information for various target audiences, and on medicaladvice and treatment practices
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The COVID-19 pandemic has put significant pressure on health systems all around the world. The drastic measures established to contain its spread are creating serious impediments to economic activity (including agrifood systems) and, consequently, to livelihoods and food security and nutrition.
Global asymmetries influence policies for recovery in Latin America and the Caribbean. Nearly 30 years after the Earth Summit and the global adoption of an international development agenda, in practical terms the environmental pillar of the 2030 Agenda for Sustainable Development has not been taken ...into consideration in recovery policies in the region. This has created major problems in terms of the medium- and long-term direction of regional economies.
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This guideline covers identifying, assessing and managing the long-term effects of COVID-19, often described as ‘long COVID’. It makes recommendations about care in all healthcare settings for adults, children and young people who have new or ongoing symptoms 4 weeks or more after the start of a...cute COVID-19. It also includes advice on organising services for long COVID.
Updated 11 November 2021
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If you have the choice of more than one vaccine and are wondering which one to take and how to assess the risk of side effects, this episode of Science in 5 with WHO’s Dr Katherine O’Brien is for you.
23 April 2020EMA/202483/2020 Rev
Chloroquine and hydroxychloroquine are known to potentially cause heart rhythm problems, and these could be exacerbated if treatment is combined with other medicines, such as the antibiotic azithromycin, that have similar effects on the heart.
DHS Working Papers No. 106
The potential for terrorist use of chemical agents is a noted concern highlighted by the Tokyo sarin gas attacks of 1995. The events of September 11, 2001, increased congressional attention towards reducing the vulnerability of the United States to such unconventional attacks. The
possibility that... terrorist groups might obtain insecure chemical weapons led to increased scrutiny of declared Libyan chemical weapon stockpiles following the fall of the Qadhafi regime. Experts have expressed similar concerns regarding the security and use of Syrian chemical weapons,
reportedly including stocks of nerve (sarin, VX) and blister (mustard gas) agents.
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DHS Working Papers No. 104.
This briefing paper provides an overview of the approach underlying EA, how and by whom it is applied and its problems and consequences. It concludes that policy makers, rather than be guided by its assumptions and conclusions, must instead concentrate on understand-i...ng the confounding structural causes of interdependent global challenges and aim at their long-term solution, within an overarching human rights framework.
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Massoda Tonye et al. Malar J (2018) 17:156
https://doi.org/10.1186/s12936-018-2284-7
Background: In 2011, the demographic and health survey (DHS) in Cameroon was combined with the multiple indicator
cluster survey. Malaria parasitological data were collected, but the survey period did not overl...ap with the high
malaria transmission season. A malaria indicator survey (MIS) was also conducted during the same year, within the
malaria peak transmission season. This study compares estimates of the geographical distribution of malaria parasite
risk and of the effects of interventions obtained from the DHS and MIS survey data.
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La question des effets du changement climatique sur les hommes et les femmes a été définie par la Commission de la condition de la femme comme une de celles qui doivent davantage retenir l’attention. Les normes, rôles et relations relatifs au genre (voir l’Encadré 1) sont d’importants fac...teurs déterminant la vulnérabilité et la capacité d’adaptation aux effets du changement climatique sur la santé (voir l’Encadré 2). Les femmes et les hommes sont vulnérables face aux effets des événements climatiques extrêmes non seulement du point de vue biologique, mais aussi du fait de leurs rôles et responsabilités sociaux distincts (Easterling, 2000 ; Wisner et al., 2004) qui peuvent varier mais se retrouvent dans toutes les sociétés. Les femmes doivent souvent supporter des charges supplémentaires en cas d’événements climatiques extrêmes du fait des rôles et responsabilités qu’elles sont censées assumer en s’occupant de la famille, alors que les hommes de leur côté supporteront des charges supplémentaires du fait de leur rôle économique.
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