13 Jan, 2023 @ 17:15
1 min read

Tiger mosquitoes carrying deadly diseases are flourishing in Spain’s mild winter

Tiger mosquitoes carrying deadly diseases are enjoying Spain's mild winter
Tiger mosquitoes carrying deadly diseases are enjoying Spain's mild winter

TIGER mosquitoes carrying serious diseases have found Spain’s mild autumn and winter weather perfect for extending their seasonal presence.

The species usually becomes active in April before disappearing in mid-November, but have been more prevalent with the higher temperatures.

Alex Richter-Boix from Barcelona’s Pompeu Fabra University said: “Mosquito observations in November and December in previous years represented up to 2% of the annual total of tiger mosquitoes in Spain.”

“In 2022, the observations of that period, especially November, represented almost 5%- around triple compared to a year earlier,” he added.

“Despite the fact that last year had relatively few mosquitoes due to the droughts, the high temperatures in November allowed their activities to extend,” confirmed Richter-Boix.

The tiger mosquito transmits potentially fatal tropical diseases such as dengue fever, chikungunya or the Zika virus.

It was detected in Spain for the first time in 2004 and is very active during the day.

It usually breeds in containers with stagnant water, such as buckets, pots, and dishes.

The greatest activity of the tiger mosquito is concentrated in urban areas of the Mediterranean coast and the Balearic Islands.

“Little by little it is spreading towards the interior and northern provinces and is already present in the Basque Country, Aragon, Madrid and other regions,“ said Richter-Boix.

Travel by car and lorries are ‘accelerating its spread in European and Spanish territories as they allow the mosquito to cover great distances and colonise municipalities that it would not reach so quickly by its own means’.

Alex Trelinski

Alex worked for 30 years for the BBC as a presenter, producer and manager. He covered a variety of areas specialising in sport, news and politics. After moving to the Costa Blanca over a decade ago, he edited a newspaper for 5 years and worked on local radio.

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