The outbreak started in December and has now spread from a few reports in the suburbs to hundreds in the city, along Lake Michigan, over the last week.

H5N1 bird flu — have been found along the shores of Lake Michigan in the Chicago area, prompting warnings from area health ...

The U.S. has reported its first death due to bird flu, aka H5N1. How deadly is H5N1? Experts discuss bird flu fatality rate ...