Once confined mainly to tropical regions, dengue fever is spreading to new parts of the world. In 2023 California confirmed its first-ever local transmission of the virus. Other countries have reported their first cases on record, including France, Croatia, Afghanistan and countries in the subtropical regions of Africa. The rapid spread of dengue has been fueled by unprecedented rates of climate change as well as the growth of urban centers in developing countries. As many climate zones get warmer and wetter (or, in some cases more flood-prone), they become fertile breeding grounds for disease-carrying mosquitos. At the same time, humans are coming in contact with these dengue carrying insects more often because of exploding urban populations. These trends will continue for many years, setting the stage for even worse outbreaks in the near future.
Full Story: Vox