how long does norovirus last

Norovirus medical anatomy diagram showing viral structure and gastrointestinal tract infection with intestinal inflammation

Norovirus LA: How Long Contagious? Expert Guide to 2025 Surge

Norovirus is surging 250%+ in Los Angeles. Discover how long you're contagious, recognize symptoms fast, and protect yourself. Expert prevention tips inside. Updated Dec 2025.

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