The rare condition is called Boerhaave syndrome, defined as a life-threatening, spontaneous rupture of the esophagus ...

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.

FIGURE 1 Phylogenetic tree based on a partial fragment of the RNA-dependent RNA polymerase gene on human Norovirus GI and GII. Strains denomination: state of origin/year of collection/GenBank access ...

– Second-generation norovirus constructs produce statistically significant increases in GI.1 and GII.4 norovirus blocking antibodies (141% and 94%, respectively) compared with first-generation ...

The trial showed that Vaxart’s second-generation vaccine constructs significantly increased norovirus blocking antibody assay (NBAA) titers compared to first-generation constructs. The GI.1 construct ...

- Second-generation norovirus constructs produce statistically significant increases in GI.1 and GII.4 norovirus blocking antibodies (141% and 94%, respectively) compared with first-generation ...

Between 2011 and 2024, GII.4 viruses caused less than 50% of US outbreaks each season. 2. Last year’s season started in October as a new norovirus strain, GII.17, drove a record number of outbreaks.

The majority were the GII.7 strain. In years when there is a new strain of the virus, there can be 50 percent more norovirus illness. Cases continued to tick up months into this year.

Will the upcoming norovirus season be just as early and active as the past year? While the answer may be anyone’s guess right now, federal health officials recently warned that the dominant strain of ...

The majority were the GII.7 strain. In years when there is a new strain of the virus, there can be 50 percent more norovirus illness. Cases continued to tick up months into this year.

GI and GII genogroup viruses are responsible for the most outbreaks. Between 2011 and 2024, GII.4 viruses accounted for over half of outbreaks in the US in each season (September to August).