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Medical researchers often use race to define health risks. But a geneticist and a sociologist say racial categories don't accurately reflect who people are, and that science has to change.

The virus was first identified in 1947 in a rhesus monkey in the Zika Forest. Our maps show how it spread slowly at first, then last year began a rapid invasion of the Americas.

Illinois Republican congressman Rodney Davis is pushing a bill that he says will provide a more open market for things like corrective lenses. During a…

Discovery of Zika virus in the saliva and urine of infected people is concerning but may not mean the pathogen can actually be transmitted through those fluids, experts caution.

An adviser to Gov. Jerry Brown says the well that has been leaking since October could be capped in days — sooner than the end-of-February target that had been set by the utility that owns the well.

A cystic fibrosis drug that is expected to be taken by only a few hundred people may drain almost $36 million from California's general fund over two fiscal years.

Mattel is rethinking how the Barbie brand could represent women of all colors, shapes and sizes. Some are buying it. Others, not so much.

Publishers in France are altering the spellings of around 2,400 words in textbooks and will drop the hat-shaped circumflex accent in some cases. That's causing outrage.