Norovirus is spiking in the US: What do we need to know?
Al JazeeraThe CDC has already reported a significant rise in clusters of infections, just two months into norovirus season. Also referred to as the “winter vomiting bug”, norovirus is a highly contagious virus that spreads via contaminated surfaces, food and water, and close contact with infected individuals. “Eating raw seafood always is a risk for enteric infections such as norovirus, but compared to the total number of food borne outbreaks, oyster-related outbreaks make up a small proportion”, he told Al Jazeera via email, requesting anonymity because he was not authorised to speak to the media. A single norovirus “outbreak” is defined as two or more linked cases of illness traced to a common source, such as contaminated food or close contact in a specific setting. The CDC scientist said that while norovirus cases typically rise in the US during this time of year, a relatively new strain, GII.17, has become the dominant type this season.