Find info on norovirus symptoms, causes, prevention, current outbreaks, and reporting systems.

2024年4月24日 · Norovirus is very contagious; it spreads very easily and quickly. You can get norovirus from sick people and through contaminated food, water, or surfaces. You are most contagious when you have symptoms of norovirus illness or …

2025年1月2日 · Most norovirus outbreaks happen when infected people spread the virus to others through direct contact. Norovirus outbreaks have been reported in many settings. Some of the most commonly reported outbreak settings are listed below.

2025年1月13日 · Norovirus is very contagious, but you can take steps to stop it from spreading. Wash hands well with soap and water; hand sanitizer alone does not work well against norovirus. Do not prepare, handle food, or care for others when you are sick.

2024年4月24日 · Norovirus is a very contagious virus that causes vomiting and diarrhea. It is sometimes called the "stomach flu" or the "stomach bug." However, norovirus illness is not related to the flu.

2025年1月17日 · The best way to prevent norovirus is to wash your hands well with soap and water. Choose your version and download these handwashing flyers and graphics to remind your audiences how to best prevent the spread of this contagious virus.

2024年5月8日 · Norovirus is the leading cause of vomiting and diarrhea from acute gastroenteritis among people of all ages in the United States. Each year, there are about 2,500 reported norovirus outbreaks in the United States. Norovirus causes 58% of foodborne illnesses acquired in the United States.

Norovirus spreads very easily and quickly • It only takes a very small amount of norovirus particles (fewer than 100) to make you sick. • People with norovirus illness shed billions of virus particles in their stool and vomit and can easily infect others. • You are most contagious when you are sick with norovirus illness and during the

If norovirus infection is suspected, adherence to PPE use according to Contact and Standard Precautions is recommended for individuals entering the patient care area (i.e., gowns and gloves upon entry).

Diagnostic methods for norovirus testing focus on detecting viral RNA (genetic material) or viral antigen. RT-qPCR assays are the preferred diagnostic method to detect norovirus. EIA tests should not replace RT-qPCR during outbreak investigations; they are not recommended for testing single samples from sporadic cases.