Why mosquito-borne diseases are surging

Mosquito-borne diseases spiked across the world this year, with experts pointing to climate change driving expanded mosquito breeding seasons.

In the US, eastern equine encephalitis, a rare disease with a 30% mortality rate, has killed five people. In Brazil, cases of Oropouche virus, which displays similar symptoms to its compatriot zika, are up 800% since last year. And Aedes albopictus, also known as Asian Tiger mosquito, was recorded in France and Germany for the first time this year.