The CDC estimates there've been at least 24 million cases since flu season started.

A dairy worker in Nevada was infected with a new type of bird flu that’s different from the version that has been spreading ...

An unprecedented yearlong outbreak of tuberculosis in Kansas has officials and residents concerned about lack of resources and additional cases that may occur under the radar.

Pet owners must take "proper precautions to reduce the risk of spread," said Dr. Susan Nelson, a veterinarian and professor.