Fred Muzaya, a 26-year-old Ugandan who has AIDS, prepares for a spinal tap to relieve the pressure in his skull, brought on by the fungal disease cryptococcal meningitis. Patrick Adams hide caption

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Yonta, 6, rests with her sister Montra, 3, and brother Leakhena, 4 months, under a mosquito bed net during monsoon season in July 2010, in Pailin province, Cambodia. Paula Bronstein/Getty Images hide caption

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An X-ray of the chest of a man with tuberculosis. The areas infected with TB bacteria are colored red. Science Photo Library/Corbis hide caption

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In New York, Video Chat Trumps Quarantine To Combat TB
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A health worker cleans his hands with chlorinated water before entering an Ebola screening tent at the Kenema Government Hospital in Sierra Leone. More than 300 Sierra Leoneans have died of the disease. Michael Duff/AP hide caption

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Even With $100 Million, WHO Says It Will Take Months To Control Ebola
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A high-resolution image of the molecular carrier that moves the botulinum toxin from the intestine into the bloodstream. The carrier (silver) creates gaps in the gut lining by grabbing the rope-like molecules (red ribbons) that tether one intestinal cell to the next. Rongsheng Jin, UC Irvine, and Min Dong, Harvard Medical School hide caption

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Convenience may be one reason why most teens haven't gotten all three HPV shots. VCU CNS/Flickr hide caption

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Parents And Teens Aren't Up To Speed On HPV Risks, Doctors Say
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