Invasive Aedes aegypti mosquito found breeding in London

The UK Health Security Agency (UKHSA) has confirmed the first instance of the invasive Aedes aegypti mosquito breeding in the United Kingdom. The species, which is known to transmit viruses such as dengue, Zika, and chikungunya, was discovered at residential properties in east London.

While the species has been detected in the UK previously, this marks the first time larvae have been found reproducing. Experts believe the mosquitoes likely arrived through accidental importation via vehicles, baggage, or plants. Control measures have been implemented to destroy the larvae, and surveillance and trapping efforts have been increased in the area.

Dr. Jolyon Medlock of the UKHSA stated that the risk to the public is assessed as “very low,” noting there is no evidence of human infections or the presence of larvae in nearby public areas. Although recent heatwaves have occurred, officials noted that the UK climate is generally too cold for the species to survive long-term. However, experts warned that climate change could lead to more frequent sightings of invasive mosquito species in the future.