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Vector borne diseases

The right diagnostic tools are essential for screening and diagnosis of vector borne diseases.

 

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Complex demographic, environmental and social factors influence the distribution of vector borne diseases. Global travel and trade, urbanization and climate change can impact vector populations.  These factors may lead to an increase in disease transmission patterns in terms of length, intensity and distribution, causing diseases to emerge in countries where they were previously unknown.

 

In addition to vector control programs, preventive measures, and training and education, the right diagnostic tools are essential for screening and diagnosis of vector borne diseases. Roche is strongly committed to develop a comprehensive solution for this purpose.

 

Vector borne diseases acount for more than 17% of all infectious diseases, and cause over 700 000 deaths annually.1

 

In humans, vector borne diseases are caused by parasites, viruses and bacteria that are transmitted by animal vectors. Many vectors are bloodsucking insects, which ingest disease-producing microorganisms during a blood meal from an infected human or animal host and later inject it into a new host during a subsequent blood meal.1 These vectors (and the diseases they host) include:1,2

 

  • mosquitoes (chikungunya, dengue, Zika, malaria, yellow fever) 
  • sandflies (leishmaniasis, sandfly fever)
  • triatomine bugs (Chagas disease)
  • blackflies (onchocerciasis)
  • ticks (Lyme disease, tick-borne encephalitis) 
  • tsetse flies (African trypanosomiasis)
  • mites (scrub typhis)
  • aquatic snails (schistosomiasis) 
  • lice (typhus, louse-borne relapsing fever)

 

 

  1. World Health Organization. Fact sheet accessed March 2019 from: https://www.who.int/news-room/fact-sheets/detail/vector-borne-diseases
  2. Javed S, et al. (2013). Curr Opin Pediatr 25, 488-91

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