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  1. Norovirus infection - Symptoms & causes - Mayo Clinic

    Apr 30, 2025 · Signs and symptoms usually begin 12 to 48 hours after your first exposure to a norovirus and last 1 to 3 days. You can continue to shed virus in your stool for several weeks …

  2. Norovirus infection - Diagnosis & treatment - Mayo Clinic

    Apr 30, 2025 · Norovirus infection is usually diagnosed based on your symptoms, but noroviruses can be identified from a stool sample. If you have a weakened immune system or have other …

  3. Norovirus: What to know and how to avoid it

    Dec 31, 2024 · People sick with norovirus shed the virus in high amounts in their vomit and stool, so coming into contact with the virus is how you get sick. This can be through direct contact or …

  4. Stomach flu: How long am I contagious? - Mayo Clinic

    Mar 7, 2024 · Norovirus can survive for months on surfaces not disinfected well enough with bleach solution. Also wear disposable gloves to wash clothes or linens right away if they might …

  5. Viral gastroenteritis (stomach flu) - Symptoms & causes - Mayo …

    Apr 30, 2025 · You're most likely to get viral gastroenteritis when you eat or drink contaminated food or water. You may also be likely to get gastroenteritis if you share utensils, towels or food …

  6. Viral gastroenteritis (stomach flu) - Mayo Clinic

    Apr 30, 2025 · A rapid stool test can detect rotavirus or norovirus, but there are no quick tests for other viruses that cause gastroenteritis. In some cases, your doctor may have you submit a …

  7. Food poisoning (foodborne illness) - Symptoms and causes

    Aug 16, 2025 · You'll soon start receiving the latest Mayo Clinic health information you requested in your inbox.

  8. COVID-19, cold, allergies and the flu: What are the differences?

    Oct 22, 2025 · The only way to find out for sure if you have COVID-19 is to get tested right away. If you have symptoms of the disease, you can use a COVID-19 test kit at home.

  9. Rotavirus - Symptoms & causes - Mayo Clinic

    Aug 18, 2025 · Symptoms include: Fever and vomiting. These are often the first symptoms people have, but they tend to improve by the second day. Diarrhea. This symptom can last a few days …

  10. How do you know if symptoms are allergies or virus infections?

    Mar 31, 2025 · The clue I typically look for is whether I have significant symptoms (e.g., runny nose, coughing, sneezing) that appear despite taking my regular allergy medicines, as those …