While the H5N1 bird flu keep spreading, the first reported H5N9 outbreak in the United States has been identified on a duck ...
Bird flu is now believed to be widespread in Massachusetts and is likely present even in places where there has not been a ...
A pandemic is not inevitable, scientists say. But the outbreak has passed worrisome milestones in recent weeks, including ...
Note: An earlier version of this story did not correctly combine county data, leading to an inflated number associated with ...