DHAKA, Bangladesh -- A measles outbreak has spread rapidly in Bangladesh, sickened thousands of people, most of them children, and prompted the government to launch an emergency vaccination drive. Health authorities in Bangladesh said Thursday that they had confirmed more than 8,000 infections since March, the highest number of annual cases in about two decades, and 80 deaths. Authorities reported 59,279 suspected cases and 401 suspected deaths from the disease since March.