Two species of disease-carrying mosquitoes have been found in the UK, according to research. A new report into mosquito surveillance from the UK Health Security Agency (UKHSA), covering May 2020 to November 2024, found Aedes albopictus and Aedes aegypti are not currently established in the UK. The UKHSA also undertakes broader mosquito surveillance efforts, including using adult mosquito traps in 307 places across England and Wales. If Aedes albopictus and similar species did become established in the UK, it is thought isolated cases of vector-borne diseases, similar to those seen in continental Europe, could happen. “UKHSA surveillance systems have detected these mosquito species in the UK on a number of occasions since 2016.