Chagas, a parasitic disease which can kill victims decades after infection, has spread from Latin America to the United States and Europe due to inadequate blood screening, the World Health Organisation [WHO] said on Friday. The [WHO] said it was expanding its programme to eliminate Chagas, which has become a "global problem", with the help of Bayer HealthCare. Bayer's donation of 2.5 million tablets of Lampit...will help treat an estimated 30,000 patients over the next five years...