Norovirus is a common cause of stomach bug symptoms in New York City, particularly during winter and spring months. If you are experiencing sudden vomiting, diarrhea, or stomach cramps, here is what to do and when to get evaluated.
Quick answer: What to do right now if you think you have norovirus
Start hydration immediately. Take small, frequent sips of an oral rehydration solution, rest, and pause solid food if vomiting continues. Avoid preparing food for others. If you cannot keep fluids down or notice dehydration signs, seek same-day evaluation by a licensed medical clinician.
Norovirus symptoms: what’s normal vs. a red flag
Common symptoms include sudden nausea, vomiting, watery diarrhea, stomach cramps, low-grade fever, and body aches. Most people feel the worst in the first 24 hours. Red flags that warrant evaluation include dizziness when standing, confusion, fainting, very low urination, dry mouth, or persistent vomiting that prevents any fluid intake.
Most cases improve within 1–3 days, but dehydration signs mean you should get evaluated by a licensed medical clinician the same day.
How norovirus spreads in NYC (and why it’s so contagious)
Norovirus spreads primarily through the fecal-oral route — contaminated hands, surfaces, shared bathrooms, and food handling. It is highly contagious because the viral dose needed to cause infection is very low. Handwashing with soap and water is more effective than hand sanitizer for norovirus. Bleach-based disinfectants are recommended for cleaning surfaces.
How long norovirus lasts and when you’re contagious
Incubation is typically 12–48 hours after exposure. Symptoms often peak in the first 24 hours and improve within 1–3 days for most people. You can remain contagious even after symptoms resolve, so continue precautions for at least 48 hours after feeling better.
At-home care checklist: hydration, food, and symptom relief
- Drink oral rehydration solutions or clear broth in small, frequent sips
- Avoid solid foods while vomiting is active
- Introduce bland foods (crackers, rice, toast) once vomiting improves
- Avoid alcohol, dairy, and greasy foods
- Rest and allow symptoms to improve
When to get evaluated by a licensed medical clinician
Get same-day evaluation if you cannot keep any fluids down, if dehydration signs develop (dry mouth, dark urine, dizziness), if you have severe belly pain, blood in your stool, or if you are elderly, pregnant, or immunocompromised. SickDay medical house calls in NYC are available 8am–9pm, 7 days a week. A licensed medical clinician can evaluate you at your home, office, or hotel. Call (212) 742-5329 or request a house call in NYC.
How to prevent spreading norovirus to roommates, kids, and coworkers
Use a separate bathroom if possible. Clean contaminated surfaces with a bleach-based disinfectant. Wash linens on a hot cycle. Do not share towels, utensils, or drinks. Stay home from work or school until at least 48 hours after symptoms resolve.
Frequently Asked Questions
How do I know if I have norovirus or food poisoning?
Norovirus often spreads person-to-person and can affect multiple people in the same household. Food poisoning is more typically tied to a shared meal. A licensed medical clinician can help assess timing, symptoms, and exposure history.
How long does norovirus last?
Many people feel significantly better within 1–3 days, though hydration may take longer to fully normalize.
What should I drink with a stomach bug?
Oral rehydration solutions, water in small sips, and clear broth. The goal is steady fluids and electrolytes, not large amounts at once.
When should I get care for vomiting and diarrhea?
If you cannot keep fluids down, have dehydration signs, severe belly pain, blood in stool, or symptoms are not improving within 48–72 hours.
How can SickDay help if I’m too sick to leave home?
A licensed medical clinician can come to your location in NYC during operating hours to evaluate symptoms and recommend treatment and next steps. Telemedicine visits in New York state are also available for less severe symptoms.
