Yes, siblings should ideally stay home from school or daycare if one has a stomach bug (gastroenteritis) because these viruses (like Norovirus) are highly contagious and spread easily through close contact, contaminated surfaces, or even airborne particles from vomit, so keeping the healthy sibling home for at least 24-48 hours after symptoms resolve helps prevent family spread and protects other kids at school. Isolate the sick child, practice rigorous handwashing, and avoid sharing personal items like towels and utensils.
Washing your hands often with soap and water is the best way to stop the spread of these viruses to others. Hand-washing works much better than alcohol-based hand sanitizer for norovirus. To help keep others from getting sick, disinfect contaminated surfaces right after someone vomits or has diarrhea.
You can treat stomach bugs at home by making sure your child keeps drinking fluids and gets plenty of rest. The best way to keep your child well hydrated is with an electrolyte-containing solution such as Pedialyte®. Have your child take small sips frequently — meaning every five minutes or so — throughout the day.
Most people who are exposed to norovirus get sick within 12 to 24 hours. A typical illness lasts 12 to 60 hours – half a day to 2½ days. After people begin to feel healthy again, they're still contagious for a while. Many are only contagious for 48 hours; others are contagious for much longer.
All of the viruses that cause the stomach bug are highly contagious. Once one person in a daycare, school or office catches it, it's not unusual to see many others also get sick. If your child is healthy and not sick, the most important thing to do is to keep him/her that way.
Contact with infected persons and contaminated environments are believed to be the main routes of transmission. However, noroviruses have recently been found in aerosols and airborne transmission has been suggested.
You might find that you can eat bland, easy-to-digest foods at first, such as soda crackers, soup, oats, noodles, bananas and rice. Stop eating if your nausea returns. Avoid certain foods and substances until you feel better. These include caffeine, alcohol, nicotine, and fatty or highly seasoned foods.
Signs and symptoms of norovirus infection may start suddenly and include:
Stomach flu and stomach bug are informal terms for viral gastroenteritis, a sickness in which a viral infection causes inflammation in the stomach and intestines.
Children average one or two bouts of this stomach bug each year. Kids often get it more often during their first year in daycare, but then have a boost in their immunity and contract it less often once they're 6 years old.
Anyone can get infected and sick with norovirus and people of all ages get infected during norovirus outbreaks. Your likelihood of getting a norovirus infection is also determined in part by your genes.
But “getting norovirus off of surfaces is tricky because it is resistant to most disinfectants and hand sanitizers,” Dr. Bisgrove said. In fact, norovirus “can stay on food, countertops and serving utensils for up to two weeks, even at freezing temperatures and until heated to above 140º F.”
In a plastic bucket, mix 5 to 25 tablespoons of household bleach in a gallon of water. This solution is great at killing norovirus, but becomes less potent if it is exposed to a lot of organic matter (such as vomit or stool).
Incubation period
Varies depending on the specific virus. However, one to three days (usually two) is the incubation period for norovirus and therefore used when the specific type of infection is not known.
It can spread to others very easily. You can catch norovirus from: close contact with someone with norovirus. touching surfaces or objects that have the virus on them, then touching your mouth.
Washing your hands is the single most important thing you can do to help spread since Norovirus spreads easily from hand to hand. So while you're caring for your child, cleanse your hands often (and have family members do the same). At least 20 seconds of scrubbing with warm-to-hot water and soap is the best method.
It's important to note that if diarrhea is caused by bacteria, your body needs to get rid of the bacteria first by letting diarrhea run its course. If they're taken too soon, anti-diarrheal medication can make symptoms worse and keep you from clearing the infection.
To avoid gastro when a family member is sick, practice strict hand hygiene (soap/water for 20+ secs), disinfect contaminated surfaces and items (gloves/mask helpful), avoid sharing utensils/towels, keep the sick person isolated, and stay home for 48 hours after symptoms end to prevent spread. Focus on thorough cleaning of toilets, door handles, and toys, and wash clothes/bedding in hot water.
Norovirus is the biggest cause of illness from contaminated food in the U.S. The virus typically spreads when someone who has the virus touches food before serving it to someone else. Sometimes, certain foods, including oysters and other seafood, are naturally contaminated with norovirus.
There's no specific treatment for norovirus infection. Recovery generally depends on the health of your immune system. In most people, the illness usually resolves within a few days. It's important to replace lost fluids.
“Fever is more typical in norovirus, but you can get a fever with food poisoning as well, depending on what caused it,” says Susan. “Food poisoning more commonly causes your stool to look a different color or have a different texture.”
Norovirus takes one to three days to kick in after exposure, but when it starts it comes on quickly. Often people blame the last meal they had for 'food poisoning,' when in fact the virus had been incubating in their unsuspecting bellies for days.
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Since these viruses are highly contagious, it is recommended to stay home until all symptoms (including vomiting and diarrhea) have passed. Fortunately, the “stomach bug” symptoms do not usually last more than 48 hours.