Why Brazil's Yanomami are being decimated by disease, mining

Severe malnutrition and disease, particularly malaria, are decimating the Yanomami population in Brazil's Amazon rainforest, and on Jan. 20 the federal government declared a public health emergency. While many in Brazil were ...

Blood stem cells found to not be in charge in an emergency

As long as we are healthy, our body keeps the number of blood and immune cells largely constant. However, any infection or other disorder that increases cell consumption results in cell loss, which must be replaced as quickly ...

'Blizzard of the century' leaves nearly 50 dead across US

Temperatures were expected to moderate across the eastern and midwest United States on Tuesday, after days of freezing weather from "the blizzard of the century" left at least 49 dead and caused Christmas travel chaos.

Savage US blizzard leaves 32 dead, power outages, travel snarls

A brutal winter storm that brought Christmas chaos to millions of Americans will be slow to dissipate, the US National Weather Service said Monday, after intense snow and frigid cold caused power outages, travel delays and ...

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