Here's something most people don't find out until it's too late: that bottle of hand sanitizer by the front door doesn't do much against norovirus, the stomach bug that tears through houses this time of year.
Norovirus outbreaks run heaviest from November through April, right when the whole family piles into one kitchen. Somebody brings it in on Thursday. By Saturday, half the house is taking turns in the bathroom, and everyone swears they used the sanitizer.
They probably did. It's just the wrong tool for this bug. Plain soap and running water, a careful cleanup and keeping sick people out of the kitchen will do a lot more.
- ✓Norovirus spreads quickly and hand sanitizer isn't enough.
- ✓Wash with soap and running water for 20 seconds.
- ✓Don't prepare food for others until 48 hours after symptoms end.
Why the sanitizer doesn't cut it
Norovirus is the leading cause of acute gastroenteritis in the United States, which is the medical way of saying vomiting and diarrhea. It spreads when tiny bits of vomit or stool land on hands, food, water or surfaces and then find their way into someone's mouth. Gross, but that's how it works. A sick person can leave it on the bathroom handle, the serving spoon or the edge of a phone without ever knowing.
The CDC's advice is simple: wash your hands with soap and water. Alcohol-based sanitizer can be used in some situations, but it's no substitute for handwashing when norovirus is going around. This virus is tough, and an alcohol rub won't reliably get it off your skin.
Keep the sanitizer in your coat pocket for when there's no sink. Just don't let it talk you out of using the sink when there is one, especially after you've touched a bathroom handle or helped clean up.
When should you wash? After the bathroom, after helping someone who's sick, and before you eat or handle food. Scrub with soap under running water for at least 20 seconds. Hum a chorus of something in your head if you need a timer, and don't skip the spots between your fingers.
It comes on fast, and it's harder on older adults
Symptoms usually start 12 to 48 hours after you're exposed. Sudden vomiting, watery diarrhea, stomach cramps and nausea are the classics, sometimes with a fever or body aches. Most people bounce back in about 1 to 3 days. They can be a long 1 to 3 days, though, and they can leave you wrung out.
Older adults are more likely to get severe symptoms and complications. Vomiting and diarrhea drain fluid quickly, and if you're already managing other health problems, there's less room to spare. Keep a drink by the bed and take small sips when you can. Call your doctor if you can't keep fluids down, you're barely urinating, or you feel unusually dizzy or weak.
Not every stomach bug is norovirus. Blood in the stool, severe belly pain or symptoms that keep getting worse need a doctor's attention. And antibiotics won't help here, since norovirus is a virus, not a bacterial infection.
When several people get sick after the same family dinner, norovirus is a fair guess. But you can't diagnose it from the calendar. Focus on fluids, handwashing and keeping it from reaching the next person.
When it gets into the house
- Stay home. Skip work, the party and the family dinner while you're vomiting or have diarrhea. Close quarters are exactly where this bug thrives.
- Stay out of the kitchen. Don't cook for anyone or care for others while you're sick, and wait at least 48 hours after your symptoms stop. Yes, even if you feel fine and the pie still needs making.
- Use the sink, not the bottle. Soap and running water for 20 seconds. Sanitizer can be a bonus, but it's not your main defense.
- Clean it like you mean it. After vomiting or diarrhea, clean and disinfect the area with a chlorine bleach solution or a product registered by the Environmental Protection Agency as effective against norovirus. Follow the label, and never mix cleaning products.
- Handle the laundry with care. Pick up soiled sheets and clothes carefully, wash them with detergent in hot water and dry them all the way.
- Protect the people most at risk. Keep whoever's sick away from older relatives and anyone with a weakened immune system as much as you can.
Take your time with the cleanup. Open a window if you can, wear disposable gloves if you have them and wash your hands after you peel them off. What was on the floor shouldn't end up on the next person's hands.
Then go after the things everybody touches without thinking: the faucet, the toilet handle, the light switch, the fridge door, the TV remote. A surface can look clean and still carry the virus. Leave the disinfectant on as long as the label says, and keep kids and pets away until you're done.
When to call your doctor (or 911)
Call your doctor if you can't keep fluids down, you're urinating much less than usual, you feel dizzy when you stand up, or you notice other signs of dehydration. If you're older or have a weakened immune system, call sooner. This isn't one to tough out.
Wipe down the faucet, the toilet handle and the fridge door today. Then wash your hands with real soap, and keep the sick person away from the serving spoons until they've gone 48 hours without symptoms.
Fact-Checked Medical Sources
Last reviewed: November 2026 · Fact-checked & verified
