Egg prices in the U.S. have surged due to ongoing bird flu outbreaks, which have led to the culling of over 21 million egg-laying birds across multiple states.

New Mexico, Texas and Nebraska are among the states with the highest number of people showing flu-like symptoms.

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike ...

Maps of bird flu cases show the spread of the virus across the United States. Most people infected with bird flu in the U.S. have had mild symptoms. Symptoms of H5N1 birth flu infection in humans ...