“The MMR takes three weeks to reach full immunity, but even if you are now exposed to measles, it attenuates serious infection, and reduces the chances of severe symptoms,” says Dr Smith.

Norovirus GII.17 accounted for < 10% of outbreaks in the US 2022-23 season, but rose to 75% during the 2024-25 season, passing the number of GII.4 outbreaks.

Vaxart, Inc., a biotechnology company focused on oral recombinant pill vaccines, announced it will release topline data from its Phase I trial on norovirus before the market opens on June 11, 2025.

Norovirus is highly contagious and can spread easily in healthcare settings, meaning vulnerable patients and staff are at risk. Symptoms include sudden onset of nausea, vomiting, diarrhoea, and ...