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Stomach Flu: It's Really Gastroenteritis, and It Makes You Really Sick

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Gastritis related image Photo: Getty Images

Gastroenteritis is inflammation of the lining of the intestines caused by viruses, bacteria, or parasites. According to the Medline Plus web site, gastroenteritis is not really a type of flu because it's not caused by the influenza virus, but the term stomach flu is widely used. Symptoms include diarrhea, vomiting, abdominal pain, headache, fever, and chills.

Viral gastroenteritis is very common in the United States, second only to influenza. The bacterial and parasite varieties are less common.

The Centers for Disease Control and Prevention (CDC) provides more information on viral gastroenteritis. The cause includes many different viruses, including rotavirus, norovirus, adenovirus, sapovirus, and astrovirus types. These pathogens are spread through close contact with infected persons, and from eating or drinking contaminated food or beverages.

Sewage contamination of drinking water or fishing waters is a risk. Eating raw or undercooked shellfish can transmit the disease. Poor hand hygiene by infected persons may also lead to disease transmission.

Symptoms begin one to two days after contact, and continue for 1 to 10 days. Most people recover completely, but the disease can be serious for young children, elderly people, and disabled people who are unable to care for themselves.

The main risk is dehydration from loss of fluids through vomiting and diarrhea. Oral rehydration solution is available over the counter at pharmacies. There are no drugs available to treat viral gastroenteritis. Prevention by good hygiene is our main defense.

Hand-wipes are widely available to aid in hand hygiene. Syed A. Sattar and colleagues at the University of Ottawa, in Ontario, Canada investigated the use of ethanol-based products on noroviruses. “Human noroviruses (HuNoV) remain the most common cause of acute viral gastroenteritis (AVG) with 6 million clinical cases and 200,000 deaths/year worldwide,” they reported.

Outbreaks of norovirus gastroenteritis are common on cruise ships, in health care settings, and in the general community. Development of effective hygiene products is limited by the fact that HuNoV does not grow well in laboratory cultures.

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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.



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