Stomach Flu in Children: An Introduction
Stomach flu is an intestinal infection caused by several different viruses that can result in
diarrhea and vomiting. Highly contagious, stomach flu is the second most common illness in the United States. It causes millions of cases of diarrhea each year.
But the so-called "stomach flu" is actually not stomach flu at all. Viruses that cause stomach flu affect the small intestine, not the stomach. Furthermore, stomach flu viruses are not flu viruses. The
flu virus is the
influenza virus, which affects the respiratory system. The
influenza virus does not affect the intestines.
Regardless of the inaccuracies of the term "stomach flu," it is the most commonly used term to describe what healthcare providers call viral gastroenteritis.
Other names that people use to describe stomach flu in children include:
Types of Stomach Flu in Children
Many different viruses can cause stomach flu in children. The most common types include:
Each stomach flu virus has its own seasonal activity. For example, in the United States, rotavirus and astrovirus infections occur during the cooler months of the year (October to April), whereas adenovirus infections occur throughout the year.
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