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Although it is not related to influenza, in the U.S. and U.K., it is sometimes called the "stomach flu". [9] Gastroenteritis is usually caused by viruses; [4] however, gut bacteria, parasites, and fungi can also cause gastroenteritis. [2] [4] In children, rotavirus is the most common cause of severe disease. [10]
Multisystem inflammatory syndrome in children (MIS-C), or paediatric inflammatory multisystem syndrome (PIMS / PIMS-TS), or systemic inflammatory syndrome in COVID-19 (SISCoV), is a rare systemic illness involving persistent fever and extreme inflammation following exposure to SARS-CoV-2, the virus responsible for COVID-19. [7]
While other intestinal viruses are more common in the summer, norovirus is known as the "winter vomiting disease," Dr. William Schaffner, professor of infectious diseases at Vanderbilt University ...
The 2023-2024 norovirus season is well underway in the United States. Cases of the highly contagious stomach bug, which causes diarrhea and vomiting, are climbing steadily across the country.
The winter stomach bug is back. Norovirus, a contagious virus that causes vomiting and diarrhea, has been surging in the Northeast over the past few weeks.
[3] [11] [12] [13] Several explanations contributing to the milder COVID-19 symptoms experienced by children have been suggested, including: a lower expression of ACE-2 (the receptor used by SARS-CoV-2 for cell entry) in the respiratory tract in younger children; viral interference, e.g. by other coronaviruses; cross-reactive immune responses ...
Like the flu, it is a virus, but that's about where their similarities end, so calling it a "stomach flu" is a bit of a misnomer. It's also super contagious and really common.
The virus is common, causing close to 20 million cases of vomiting and diarrhea and over 100,000 hospitalizations in the U.S. each year, according to the National Foundation for Infectious Diseases.