None of the biocontainment treatment centers in U.S. hospitals were specifically designed for kids — until now. Texas Children's Hospital aims to fill that gap. Courtesy of Texas Children's Hospital hide caption

itoggle caption Courtesy of Texas Children's Hospital
Thomas Kuhlenbeck/Ikon Images/Corbis

Scientists think the lone star tick (center) likely transmits Heartland disease to people. And the virus probably also circulates in deer and coyotes. iStockphoto; CDC; iStockphoto hide caption

itoggle caption iStockphoto; CDC; iStockphoto

Officials cut off water to San Quentin State Prison in California to squelch an outbreak of Legionnaires' disease. Robert Galbraith/Reuters/Landov hide caption

itoggle caption Robert Galbraith/Reuters/Landov

A celebration erupts in the streets of the Massessehbeh village on Friday, after President Ernest Bai Koroma officially ended Sierra Leone's largest remaining Ebola quarantine. Sunday Alamba/AP hide caption

itoggle caption Sunday Alamba/AP

The varicella zoster virus causes chickenpox in children, then lurks in the body for years and can cause painful shingles later in life. James Cavallini/Science Source hide caption

itoggle caption James Cavallini/Science Source

The outbreak of Middle East respiratory syndrome is slowing down in South Korea, but people were still wearing surgical masks around Seoul on Monday. Ed Jones/AFP/Getty Images hide caption

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Raymond Wang, 17, of Vancouver, celebrates winning first place at the Intel International Science and Engineering Fair in Pittsburgh, May 15. Courtesy of Kathy Wolfe/Intel hide caption

itoggle caption Courtesy of Kathy Wolfe/Intel

In front of the emergency room at the Samsung Medical Center in Seoul, medical workers care for a man suspected of having the Middle Respiratory syndrome on Monday. Jung Yeon-Je/AFP/Getty Images hide caption

itoggle caption Jung Yeon-Je/AFP/Getty Images