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
April 2020
This Guidance Note offers a list of recommendations based on a combination of WHO guidelines, good practice and expert advice based on the latest scientific research. The situation with COVID-19 is evolving rapidly and the guidance will continue to be updated if and when new evidence o...r information becomes available.
more
Antibiotic resistant bacteria are spreading at an alarming rate and some bacterial infections may once again be untreatable. Antibiotic resistance (ABR), conservatively calculated, causes more than 500 000 deaths every year. This number is projected to rise dramatically if radical actions are not ta...ken. Lack of effective antibiotics, diagnostics and vaccines threatens the health of millions and hampers fulfilment of several of the Sustainable Development Goals. Access to effective antibiotics should be part of every adult and child’s right to health.
more
This package, developed jointly by The ACQUIRE Project and Promundo, a Brazilian nongovernmental organization, can be used by individuals, organizations, and donors to carry out needs assessments to identify gaps in male engagement programming related to HIV and AIDS prevention, care, treatment, and... support.
more
WHO practical guidelines. 2nd edition
A manual intended for medical and other personnel responsible for humanitarian activities in armed conflicts. It covers the following topics: setting up a health-care system that meets the essential needs of war victims, particularly of displaced persons; public health tools most frequently used for... evaluation, establishment of priorities, analysis of possible activities and their follow-up; protecting war victims and aspects of humanitarian law related to health; and lastly, ethical problems
more
Euro Surveill. 2015 Mar 26;20(12). pii: 21073.
These guidelines provide guidance on how to detect an outbreak of the disease, conduct pertinent epidemiological investigations, and prevent or mitigate the spread of the disease throughout the Region. We encourage everyone working to apply these guidelines to take into account all the knowledge ava...ilable and their own country’s capability to cope with the introduction of CHIKV. Steps should be taken now to put in place the necessary measures that will decrease the impact that this new arbovirus could have in our Region.
more