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Vector-Borne Diseases

 Vectors are living organisms that can transmit infectious diseases either between humans or from animals to humans.
Mosquitoes are the best known disease vector; others include ticks, flies, sand flies, fleas, triatomine, bugs and some freshwater aquatic snails.
Key Facts:
  •  Worldwide, vector-borne diseases account for more than 17% of all infectious diseases, causing more than 1 million deaths annually.
  • More than 2.5 billion people in over 100 countries are at risk of contracting dengue alone.
  • Malaria causes more than 400 000 deaths every year globally, most of them are children under 5 years.
  • Other diseases, such as chagas disease, leishmaniasis and schistosomiasis, affect hundreds of millions of people worldwide.
  •  Main Reasons of disease transmission: globalization, travel and trade, unplanned urbanization and environmental challenges such as climate change
  • Some diseases such as dengue, chikungunya and West Nile virus are emerging in countries for the first time
  • In Lebanon, the Syrian crisis is a major risk factor for the emergence of vector-borne diseases due to displacement of carriers.
  •  The accumulation of the garbage in Lebanon and the warm weather constitute a favorable condition for the breeding of vectors such as rodents, insects, mosquitoes and ticks.
  • Many of these diseases are preventable through appropriate protective measures.
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