A bladder at a camp in Port-au-Prince holds fresh water. Sanitation and clean water are key to staving off cholera, and public health officials are launching a massive education effort using text messages and radio broadcasts. Christopher Joyce/NPR hide caption

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Philomena Josephat and her father Joseph at St. Nicholas Hospital. Joseph, who has recovered from cholera, said: "I've never felt sick like that before, but I lost a child, and since then my health left me. And with this, that's even worse. I felt like I was dying." Carl Thalemaque for NPR hide caption

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Children await treatment at a medical facility in St. Marc, northern Haiti, amid a cholera epidemic that has claimed more than 100 lives and infected more than 1,000 people over the past few days. Thony Belizaire/AFP/Getty Images hide caption

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The jury's out on how much smoking marijuana impairs driving. David McNew/Getty Images hide caption

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AstraZeneca settled a case with the government for $520 million in April after the company settled a separate lawsuit for speaker misconduct but continued to pay doctors to speak about prescribing drugs for purposes for which they were not approved. AFP hide caption

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Pfizer, one of the largest drug makers in the U.S., saw $27.8 billion in sales in 2009. Seven drug companies, including Pfizer, have disclosed information about doctors who receive payment for speaking fees related to products they sell. Mark Lennihan/AP hide caption

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