Norovirus levels are increasing across California, and the rise is especially notable in the San Francisco Bay Area and L.A., according to state officials.
The dreaded norovirus — the “vomiting bug” that often causes stomach flu symptoms — is climbing again in California, and doctors warn that a new subvariant could make even more people sick this season.
In L.A. County, concentrations of norovirus are ... [7617 chars]

