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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Policy
25 February 2015 Vol 7 Issue 276 276fs8
This study highlights the challenges and areas in need of improvement as perceived by CHWs and beneficiaries, in regards to a nationwide scale-up of CHW interventions in a resource-challenged country. Identifying and understanding these barriers, and addressing them accordingly, particularly within ...the context of performance-based financing, will serve to strengthen the current CHW system and provide key guidance for the continuing evolution of the CHW system in Rwanda.
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Clinical Microbiology and Infection Volume 21, Issue 5, May 2015, Pages 433-443;
The neglected zoonotic diseases (NZDs) have been all but eradicated in wealthier countries, but remain major causes of ill-health and mortality across Africa, Asia, and Latin America. This neglect is, in part, a conse...quence of under-reporting, resulting in an underestimation of their global burden that downgrades their relevance to policy-makers and funding agencies. Increasing awareness about the causes of NZDs and how they can be prevented could reduce the incidence of many endemic zoonoses.
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This document is written for local and international staff running nutrition programmes in emergencies, and for local, regional and national authorities and donors involved in such programmes.
The note explains why nutrition programmes need to include early childhood development (ECD) activities t...o maximize the child’s development.
It provides practical suggestions as to what simple steps are necessary to create integrated programmes in situations of famine or food insecurity and it gives examples of how such integrated programmes have been established in other situations.
This document is also available in Arabic: http://www.who.int/mental_health/emergencies/ecd_why_what_how_arabic.pdf?ua=1
;and in French: http://www.who.int/mental_health/emergencies/ecd_why_what_how_french.pdf?ua=1
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Direct acting antivirals (DAAs) have revolutionized treatment for hepatitis C. Combi-
nations of DAAs can cure infection with HCV in 12 weeks, are highly effective and
have limited side-effects. Affordability of DAAs has improved significantly, but access remains lim-
i...ted. Initially, due to their high prices, affordability of DAAs was limited in high-, middle- and low-
income countries alike. Now there is a divide between those countries where, because of intellectual
property barriers, prices have remained (very) high and other countries where generics are, or can be,
available at much lower prices. The result is a dual market
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How to address the global crisis in antibiotic research and development.
The report includes a comprehensive summary and critical evaluation of recent initiatives to overcome the barriers to achieve sustainable access to antibiotics. As antibiotic resistance will continue to develop as long as we ...depend on these medicines to treat bacterial infections, a continuous supply of new effective antibiotics is needed. The report identifies five key challenges that must be solved in order to achieve sustainable access for all, and charts out options for governmental action in response to each of them.
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Has the world worked together to tackle the coronavirus? July 2021. This research paper assesses how the global community has responded to calls for greater solidarity in tackling the COVID-19 pandemic, and presents the insights of key stakeholders and experts in global health governance, health sec...urity, and pandemic preparedness and response. The authors examine the state of solidarity at global, regional and national levels, and present case studies on COVAX and on the EU’s turbulent journey through solidarity.
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Cervical cancer, along with maternal deaths, has been identified as a national priority in
South Africa as well as other Sub-Saharan African countries. Cervical cancer is the
second most common cancer among women in South Africa, after breast cancer. Due
to limited access to prevention, early dia...gnosis and treatment, cervical cancer is often
fatal.
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Integrated Management of pregnancy and childbirth
A guide to protocol development for low-income countries
There are social and environmental barriers faced by persons with disabilities which have been reported in literature. In discussing these barriers, attention is yet to be given to the support from families to members with disabilities. This study aimed to examine family support and its impact on th...e lives of persons with disabilities in Ghana.
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The US Conference of Catholic Bishops(USCCB) have identified sevencore themes in Catholic Social Teaching (CST). The CST Bible Study is an eight week program exploring those themes. The first week is an introductionto CST and weekstwo through eight are sessionson each of theseven themes. This stu...dy may be adapted to meet the needs of a given group. For example, the group can meet weekly for eightweeks or monthly for eight months (ideal for a school year). Each session is approximately one hour long.
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An update from the EU Early Warning System
Background
Noncommunicable diseases are major contributors to morbidity and mortality worldwide. Modifying the risk factors for these conditions, such as physical inactivity, is thus essential. Addressing the context or circumstances in which physical activity occurs may promote physical activity a...t a population level. We assessed the effects of infrastructure, policy or regulatory interventions for increasing physical activity.
Methods
We searched PubMed, Embase and clinicaltrials.gov to identify randomised controlled trials (RCTs), controlled before-after (CBAs) studies, and interrupted time series (ITS) studies assessing population-level infrastructure or policy and regulatory interventions to increase physical activity. We were interested in the effects of these interventions on physical activity, body weight and related measures, blood pressure, and CVD and type 2 diabetes morbidity and mortality, and on other secondary outcomes. Screening and data extraction was done in duplicate, with risk of bias was using an adapted Cochrane risk of bias tool. Due to high levels of heterogeneity, we synthesised the evidence based on effect direction.
Results
We included 33 studies, mostly conducted in high-income countries. Of these, 13 assessed infrastructure changes to green or other spaces to promote physical activity and 18 infrastructure changes to promote active transport. The effects of identified interventions on physical activity, body weight and blood pressure varied across studies (very low certainty evidence); thus, we remain very uncertain about the effects of these interventions. Two studies assessed the effects of policy and regulatory interventions; one provided free access to physical activity facilities and showed that it may have beneficial effects on physical activity (low certainty evidence). The other provided free bus travel for youth, with intervention effects varying across studies (very low certainty evidence).
Conclusions
Evidence from 33 studies assessing infrastructure, policy and regulatory interventions for increasing physical activity showed varying results. The certainty of the evidence was mostly very low, due to study designs included and inconsistent findings between studies. Despite this drawback, the evidence indicates that providing access to physical activity facilities may be beneficial; however this finding is based on only one study. Implementation of these interventions requires full consideration of contextual factors, especially in low resource settings.
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