Invasive mosquitoes found breeding in East London homes

Mosquitoes known to carry diseases such as dengue, chikungunya, and Zika have been found breeding in homes in East London. This is the first time the Aedes aegypti species has been identified in the UK. It is believed the insects arrived accidentally, possibly transported in luggage, vehicles, or plants.

Mosquito Watch scheme identifies species

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The discovery was made through the Mosquito Watch scheme, established to detect invasive species. Aedes aegypti mosquitoes are typically found in tropical or subtropical regions. Control measures have been put in place to eliminate the larvae, and the affected area will be closely monitored for any further presence of the mosquitoes or their larvae.

Climate unlikely to support long-term survival

Despite recent warm weather, the UK climate is considered too cold for these mosquito colonies to survive for extended periods, according to the UK Health Security Agency (UKHSA). However, the agency anticipates continued introductions of invasive mosquitoes and an increase in their ability to survive in the UK as the climate warms.

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Dr Jolyon Medlock, head of medical entomology at the UKHSA, confirmed that there is no evidence of human infections caused by these mosquitoes, nor have they been found in nearby public areas. He advised residents, as a precautionary measure, to help reduce breeding opportunities for all mosquito species by removing standing water from gardens and outdoor spaces. This includes water collected in buckets, containers, paddling pools, and plant pots.

Dr César López-Camacho, from the Nuffield Department of Medicine at the University of Oxford, described the finding as significant but not a cause for alarm. He also noted that similar cases are expected to increase in the UK with rising global temperatures.