Europe has been recording seasons of transmission of diseases caused by longer and more intense mosquitoes, especially with regard to cases of western nile viruses and chikungunya.
The warning is from the European Center for Disease Prevention and Control (ECDC).
Change, according to the organ, is driven by climate and environmental factors, such as increased temperatures, longer summers, milder winters and changes in precipitation patterns – conditions that, combined, create a favorable environment for mosquito proliferation.
“Europe is entering a new phase-in which the longest, widespread and intense transmission of mosquitoes transmitted by mosquitoes is becoming the new normal,” said ECDC director Pamela Rendi-Wagner, highlighting that the center works with Member States to provide personalized support and timely guidelines for public health.
Numbers
In a statement, the ECDC reported that the virus -transmitting mosquito Chikungunyathe Aedes albopictuswas identified in 16 European countries and in 369 regions of the continent. About a decade ago, he had been noted in only 114 regions of Europe.
“Associated with increasing international travel, this spread makes local outbreaks more likely.”
In 2025, Europe recorded 27 outbreaks of Chikungunya – Centro classified number as a “new record for the continent,” said the ECDC.
“For the first time, a case of viral disease chikungunya Locally acquired was reported in the Alsace region of France – an exceptional occurrence in this latitude, highlighting the continuous expansion of the risk of transmission to the north. ”
Regarding the Western Nile virus, in 2025, for the first time, infections were reported in the Italian provinces of Latin and Frosinone, and Slaj County in Romania.
“Europe has recorded the largest number of cases of the Western Nile virus in three years,” the ECDC said, warning of cases, with seasonal peak scheduled for August or September.
“New ECDC guidelines include practical measures for surveillance, prevention and control for chikungunyadengue and zika, with personalized recommendations for European countries, including those with limited experience or never faced the threat of mosquito -transmitted diseases, ”said the statement.
