NEW YORK — U.S. public health officials have been told to stop working with the World Health Organization, effective immediately. A U.S. Centers for Disease Control and Prevention official ...

U.S. public health officials have been told to stop working ... as well as brewing threats from around the world. It also comes as health authorities around the world are monitoring bird flu ...

NEW YORK — U.S. public health officials have been told to stop ... It also comes as health authorities around the world are monitoring bird flu outbreaks among U.S. livestock.