If you're ill with the "stomach flu," you're not alone. Norovirus is surging across Arizona, is highly contagious and spreads ...

For years, RFK Jr. has questioned the safety and effectiveness of childhood immunizations against measles, polio and other ...

This year, 61 people in the U.S. have been infected with bird flu, according to the CDC. Avian flu is affecting domestic and wild animals in Arizona. State officials said on Friday that they ...

What are we seeing right now, especially in Arizona? We are seeing influenza A." Influenza A is also causing a spike in illness in China, including hospitalizations, CDC officials said.