is the stomach flu contagious before you throw up?
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With norovirus — the most common cause of viral gastroenteritis in adults — you're contagious when you begin to feel ill. Symptoms usually appear within one to two days of exposure. Although you typically feel better after a day or two, you're contagious for a few days after you recover.
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How long is a person with rotavirus contagious? Infected persons shed large quantities of virus in their stool beginning 2 days before the onset of diar- rhea and for up to 10 days after onset of symptoms.
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How long are people infectious? People infected with a norovirus are contagious from the moment they begin feeling ill to at least three days after recovery. Some people may be contagious for as long as two weeks after recovery.
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The body also loses a lot of fluids through diarrhea, vomiting, and sweating. It is important to keep up fluid levels in the body to help avoid dehydration. People with stomach flu should drink plenty of liquids such as clear soda, clear broths, or caffeine-free sports drinks. Slow sips help to keep fluids down.
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People infected with a norovirus are contagious from the moment they begin feeling ill to at least three days after recovery. Some people may be contagious for as long as two weeks after recovery. Good hygiene practices, including frequent hand washing, are very important during this period.
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“Most people are contagious with a cold a day before they notice symptoms until about a week after the onset of symptoms,” Pittman said. “The CDC's recommendation is to stay home until you are fever free for 24 hours without the help of a fever reducer.”
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The stomach flu is a common and contagious illness for kids. And it can strike at night, when you least expect it. The “stomach bug” is also called viral gastroenteritis. Vomiting is a hallmark symptom of the viruses that cause the stomach flu.
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Influenza. Many people talk about the “stomach flu” when they're feeling sick to their stomachs. It isn't the same as influenza or the flu. Stomach flu is an illness called gastroenteritis, which is usually caused by a virus.
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People with flu are most contagious in the first 3-4 days after their illness begins. Some otherwise healthy adults may be able to infect others beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick.
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Once a person is infected and sick, they can be contagious and spread the virus for about 7 to 10 days. The virus can be spread through close personal contact such as kissing, or sharing drinking cups, forks, or spoons. It can also spread through droplets in the air when an infected person coughs or sneezes.
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Lastly, please keep in mind that the flu shot does not protect you against the “stomach flu” which can be described as vomiting, nausea, and diarrhea. These symptoms can be associated with the flu, however they can also be associated with many different viruses, bacteria, and parasites.
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The primary symptom of viral gastroenteritis (stomach flu) is diarrhea (non-bloody). Nausea, vomiting, and some abdominal cramping may accompany the diarrhea. Mild fever (about 100 F or 37.77 C), chills, headache, and muscle aches along with feeling tired may occur in some individuals with viral gastroenteritis.
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Stomach flu rarely lasts longer than 1 to 3 days. However, it may be 1 to 2 weeks before your bowel habits are completely back to normal. Dehydration is a potentially serious complication of stomach flu.
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While the stomach flu affects the stomach, influenza only affects the respiratory system (nose, throat, and lungs). Symptoms of the flu include fever, muscle aches, sore throat, and cough, and influenza can be prevented with a flu shot. Thankfully, people with the flu usually don't have gastroenteritis symptoms.
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You are most contagious in the 3 to 4 days after you start to feel sick, but you remain contagious as long as you have symptoms. Usually this is about a week, but it could be a few days more for children or people with weak immune systems. You can also pass it on a day or so before you start feeling sick.
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Norovirus. With norovirus — the most common cause of viral gastroenteritis in adults — you're contagious when you begin to feel ill. Symptoms usually appear within one to two days of exposure. Although you typically feel better after a day or two, you're contagious for a few days after you recover.
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A: Yes, bacterial gastroenteritis is contagious, which means that it can be spread directly from person to person. However, it is most often spread via contaminated food and water.