Information on the symptoms and treatment of norovirus as it spreads across the US

What to know about the symptoms and treatment of norovirus as it spreads across the US Norovirus, a highly contagious disease, is spreading across the United States. Here's everything you need to know about the virus. ABC News ABC News

Cases of norovirus are spreading across the United States and are higher than usual at this point in this season, according to data from the Centers for Disease Control and Prevention.

As of Feb. 9, more than 15% of weekly tests for norovirus are coming back positive, the highest seen since mid-March 2022. Additionally, 225 outbreaks have been recorded between Aug. 1, 2022 and Jan. 2, 2023, compared to 172 at this point last year, CDC data shows.

Norovirus is a highly contagious virus that is the most common cause of viral gastroenteritis, which is an inflammation of the inside lining of the gastrointestinal tract.

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