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Science chats with João Miguel Alves-Nunes about his risky experimental approach, and how it could help save lives More than 5 million people are bitten by snakes every year, resulting in thousands of deaths and permanent disabilities. Yet despite advances in developing antivenoms, scientists still don't know why some snakes bite humans and others don't. João Miguel Alves-Nunes has developed an unusual—and some would say insane—way to find out. The [...]

Record-breaking outbreak, fueled by an unusually hot rainy season, is disproportionally affecting poor people When dengue started to circulate in his small town in the state of Rio Grande do Sul in Brazil, Fabio Vilella's first thought was that he should get his 13-year-old son vaccinated. Children are especially vulnerable, and his son had dengue before, which increases the risk of severe disease. But Vilella, an environmental biologist, soon made a startling discovery: Not a single [...]

I wanted to highlight some recent progress against dengue fever, which is a nasty mosquito-borne disease that has been quite difficult to treat. There really aren't any effective antiviral drugs against it; once you get dengue you pretty much have to ride it out. For the majority of people, that works out fairly well, with fever being the main symptom - at least the first time around. The problem is, the dengue virus exists in at least four serotypes (I think the official count is now [...]

Model predicts where ancient people built ditches, wells, and geoglyphs throughout the rainforest region