Diseases, Conditions, Syndromes

Norovirus outbreaks have increased to prepandemic levels

The number of norovirus outbreaks increased in the 2021 to 2022 surveillance year, returning to levels similar to prepandemic levels, according to research published in the Sept. 23 issue of the U.S. Centers for Disease ...

Diseases, Conditions, Syndromes

Omicron sweeps across nation, now 73% of new US COVID cases

Omicron has raced ahead of other variants and is now the dominant version of the coronavirus in the U.S., accounting for 73% of new infections last week, federal health officials said Monday.

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