Home Database Indicators Vector-borne diseases (no further updates)

Vector-borne diseases (no further updates)


  • The transmission cycles of vector-borne diseases are sensitive to climatic factors, but disease risks are also affected by factors such as land use, vector control, human behaviour, population movements and public health capacities.
  • Climate change is regarded as the principal factor behind the observed move of the tick species Ixodes ricinus — the vector of Lyme borreliosis and tick-borne encephalitis in Europe — to higher latitudes and altitudes. Climate change is projected to lead to further northwards and upwards shifts in the distribution of Ixodes ricinus.
  • It is generally suspected that climate change has played (and will continue to play) a role in the expansion of other disease vectors, notably the Asian tiger mosquito (Aedes albopictus), which can disseminate several diseases including dengue, chikungunya and Zika, and phlebotomus sandfly species, which transmit leishmaniasis.
  • The unprecedented upsurge in the number of human West Nile fever infections in the summer of 2010 in south-eastern Europe was preceded by extreme hot spells in this region. High temperature anomalies in July were identified as contributing factors to the recurrent outbreaks in the subsequent years.

Reference information

European Environment Agency

Published in Climate-ADAPT Jan 19 2021   -   Last Modified in Climate-ADAPT Nov 29 2022

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