Keishla Mojica, 23, lives in Cuagas, Puerto Rico. She was infected with Zika virus while pregnant and expects to give birth in early January. Carmen Heredia Rodriguez/KHN hide caption

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Carmen Heredia Rodriguez/KHN

Ronald Reagan UCLA Medical Center in Los Angeles has been penalized in all three years since the creation of a Medicare program to reduce patient-safety issues in hospitals. FG/Bauer-Griffin/GC Images/Getty Images hide caption

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FG/Bauer-Griffin/GC Images/Getty Images

Samples from this 17th century Lithuanian mummy were found to house samples of variola, the virus that causes smallpox. Kiril Cachovski/Lithuanian Mummy Project hide caption

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Kiril Cachovski/Lithuanian Mummy Project

A Mummy's DNA May Help Solve The Mystery Of The Origins Of Smallpox

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In 1876, O.G. Mason, Bellevue's official photographer, took a carefully staged photograph of a blood transfusion in progress. Courtesy of the Lillian and Clarence de la Chapelle Medical Archives at NYU/Doubleday hide caption

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Courtesy of the Lillian and Clarence de la Chapelle Medical Archives at NYU/Doubleday

Bellevue Hospital Pioneered Care For Presidents And Paupers

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Candida auris is a fungus that can cause invasive infections, is associated with high mortality and is often resistant to multiple antifungal drugs, says the Centers for Disease Control and Prevention. CDC hide caption

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CDC

Cori Bargmann is applying her training as a neuroscientist to shaping the Chan Zuckerberg Initiative's ambitious agenda. Chan Zuckerberg Initiative hide caption

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Chan Zuckerberg Initiative

Applying A Silicon Valley Approach To Jump-Start Medical Research

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Mimi Morales recovers in Children's Hospital of Orange Country in late September after surgery for a dental infection she contracted at Children's Dental Group in Anaheim, Calif. She had three permanent teeth, one baby tooth and part of her jawbone removed. Mindy Schauer/Courtesy of The Orange County Register hide caption

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Mindy Schauer/Courtesy of The Orange County Register

Fleas carry the bacteria that cause cat-scratch fever, so if your kitty is flea-free, you should be in the clear. Sara Lynn Paige/Getty Images hide caption

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Sara Lynn Paige/Getty Images