Environment

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An Aedes aegypti mosquito with the dengue-blocking Wolbachia bacteria is seen at a laboratory in the Wolbito do Brasil plant, in Curitiba, Brazil, on September 1, 2025.
Urbanization

Highway Expansion Linked to Dengue Surge in the Amazon

Paving the Interoceanic Highway through Peru's Madre de Dios region led to more than 10,000 additional cases of dengue, study finds

A woman cooks palm nuts to make oil on the road that connects Obuasi to Cape Coast, in Ghana, on July 26, 2019.
Aging

Heat Stress and Air Pollution Fuel Dementia in Ghana

Ghana's aging population faces worsening cognitive health, including increased dementia risk, from pollution and high temperature