“Commonly known as the stomach flu, norovirus has been around forever, and has become the leading cause of gastroenteritis or inflammation of the intestinal tract that causes vomiting and diarrhea,” says Dr. Edmund Milder, a pediatric infectious disease specialist at Rady Children’s Hospital and UC San Diego Health.

Despite millions of cases of norovirus in the U.S. each year—and a current surge in outbreaks—there is still no vaccine for the stomach bug. Here's why it's taking so long, and how close we are to a norovirus vaccine.

Norovirus, often erroneously called the "stomach flu," sickens an estimated 21 million Americans and 685 million people worldwide every year, and though there is currently no preventive vaccine, a promising contender is in the works.

Norovirus cases are surging in the US, in part because it’s highly contagious and hard to kill. Dr. Sanjay Gupta explains why norovirus can get past many household disinfectants and describes the most effective ways to stop it from spreading in your home.

Norovirus is sweeping through California. The contagious stomach virus is now fueled by a new strain, accounting for nearly 70% of outbreaks. Infectious disease physician at Kaiser Permanente East Bay Jacek Skarbinski joined us on 'The Nine' with more insight on how to keep you and your family safe.

The Dose Transcript for January 9, 2025