Vector-borne diseases

Vector-borne diseases

WHO / Andy Craggs
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Vector-borne diseases

Vector-borne diseases, whose agents (parasites, viruses etc) are transmitted by insect vectors such as mosquitoes, flies and triatomine bugs, occur in more than 100 countries worldwide and affect about half of the world’s population. Social and environmental factors (including climate change) are key aspects affecting both the transmission and control of such diseases. This area of TDR research covers malaria, dengue, human African trypanosomiasis (HAT) and Chagas disease. It supports a wide spectrum of research from basic research on genomics and genetic modification of vectors to implementation research for the delivery and scale-up of control efforts, and includes engaging different types of communities in this work.

Specific objectives

  1. Promote and facilitate the development and evaluation of new and improved integrated vector control methods and strategies for the prevention of Chagas disease, dengue, human African trypanosomiasis (HAT) and malaria.
  2. Design and implement community-based ecosystem management and environmentally-friendly vector control interventions for the prevention of dengue and Chagas disease.
  3. Undertake interdisciplinary research towards the understanding, prevention and mitigation of the impact of environmental and climate changes on vectors and vector-borne diseases.
  4. Enhance access to control interventions through community engagement in improved and sustained delivery and scale up of the interventions for the prevention of major vector-borne diseases and other poverty related diseases.

Environmental climate change impact

TDR is investigating the effects of environmental and climate change on major vectors and vector-borne diseases. The long-term aim is to develop strategies for reducing vulnerability and increasing the resilience of populations at risk. As a first step, in collaboration with the Climate and Health Working Group of Ethiopia, Columbia University's International Research Institute for Climate and Society (IRI), IDRC-Canada, and WHO’s Protection of the Human Environment department and its African regional office, experts and key regional stakeholders are coming together to assess and, through consensus, prioritize research and capacity building needs on public health adaptation and resilience to social, environmental and climate change impacts on vector-borne diseases in Africa. This work supports the WHO African Regional Committee for Africa's Framework for Public Health Adaptation to Climate Change in the Africa Region.

Related links

Research briefs on urban health and infectious diseases of poverty

Investigating the links between vector-borne diseases, people, ecology and the environment in selected settings

Vector-borne diseases under climate change conditions in Africa

Impact of past and on-going changes on climate and weather on vector-borne diseases transmission: a look at the evidence

Other links

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