Delmas said tourism was also partly to blame, saying swimmers smeared with sunblock and mosquito repellents were also affecting the ecosystem.

Source: https://phys.org/news/2023-09-minnows-blamed-algae-filled-french-spanish.html

Experts have pointed to the inefficacy of shop-bought repellents.

Source: https://www.thescottishsun.co.uk/news/10029410/new-super-rodents-could-be-dangerous-to-humans/

So if you want to avoid being bitten, spraying yourself with tropical repellents such as DEET (diethyltoluamide), and wearing long sleeves and trousers should help prevent bites - though admittedly, this is easier said than done during a heatwave!

Source: https://www.gazettelive.co.uk/news/teesside-news/itching-teessiders-eaten-alive-mosquitoes-27690859