A person in Louisiana has contracted the nation's first severe case of bird flu after the virus mutated inside their body, allowing it to more easily infect their upper respiratory system. Dr. Celine Gounder explains.
Zobaidul Amin, 28, pleaded not guilty during an initial court appearance in Anchorage on Thursday after the FBI took custody of him in Kuala Lumpur, Malaysia, where he had been studying medicine and f...