Are There Any Countries with No Mosquitoes?

The source explores the global prevalence of mosquitoes, noting their ability to adapt to diverse environments and their significance as vectors for serious diseases like malaria and dengue. It examines the environmental and geographical factors—including extreme cold, high altitude, and lack of standing water—that can limit or prevent mosquito populations. The episode identifies specific candidates for being entirely mosquito-free, concluding that Iceland is the most confident claim due to its climate and isolation, though Antarctica is also mentioned as a mosquito-absent region. Furthermore, the source discusses how human intervention through aggressive control programs and biosecurity measures can minimize populations, while climate change poses a significant future threat to currently mosquito-free zones.