A tropical mosquito capable of transmitting dengue, chikungunya, and Zika viruses has been discovered breeding in homes in east London, according to the UK Health Security Agency (UKHSA). While public health officials stress that the overall risk remains low with no human infections reported, experts warn that a rapidly warming climate will lead to greater “incursions of invasive mosquitoes”.
Invasive Mosquitoes Found Breeding in UK Homes for the First Time
The discovery marks the first time the species has been identified breeding in the UK and the fourth time it has been detected. According to the UKHSA, the initial finding was reported through the agency’s mosquito watch surveillance scheme. Officials state that the insects could have come into the UK in vehicles, baggage and imported plants and, if the insects found a suitable climate, they could survive.
Despite evidence of breeding, the UKHSA emphasizes that the species was not established in the UK and could not survive for long in the typical UK climate, which was too cold. However, the agency warns that in a warming climate, “we will continue to see incursions of invasive mosquitoes, and increased reports of them being able to survive in the UK”.
Did you know?
A study earlier this year found that chikungunya, an excruciating tropical disease, can now be transmitted in most of Europe because of higher temperatures caused by the climate crisis.
Climate Change Driving Exotic Species Incursions
David Smith, the advocacy and social change manager at the charity Buglife, points out that the rapidly warming climate is creating conditions that were more favourable for exotic and potentially invasive species to establish in the UK. Recent discoveries of non-native invertebrates highlight an urgent need for government action.
“Recent reports of non-native invertebrates, including mosquito species, highlight the urgent need for the government to strengthen biosecurity, improve surveillance and address pathways such as the movement of potted plants and soils, through which numerous invertebrates can hitchhike undetected,” Smith stated.
Eradication Efforts and Public Guidance
In response to the finding, the UKHSA said control measures had been implemented to destroy the larvae, and the area would continue to be monitored closely to identify and eradicate any further mosquitoes and larvae.
How to Reduce Mosquito Breeding Grounds
Public health officials advise residents to take preventative steps around their properties. According to the UKHSA, homeowners should remove standing water from gardens and outdoor spaces to limit breeding opportunities for all mosquito species. Key areas to check include:
- Buckets and storage containers
- Paddling pools
- Plant pots and saucers
Frequently Asked Questions
Can the mosquitoes found in east London transmit diseases right now?
How did Aedes aegypti get into the UK?
The UKHSA states that the species could have come into the UK in vehicles, baggage and imported plants.
Are these mosquitoes established in the UK?
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