Bird flu, also known as the highly pathogenic H5N1 avian influenza, has been making the rounds in the United States over the last year and appears to be resurging again, according to officials with the Centers for Disease Control and Prevention.

The Centers for Disease Control and Prevention says hospitals treating people for the flu should test them for avian influenza within 24 hours.

As concerns about bird flu rise in the U.S., a new study is warning about the virus' ability to mutate in humans. Dr. Amish Adalja, an infectious disease physician, joins "The Daily Report" to discuss the study and how concerned people should be about the disease.