Persistent vomiting can be alarming, especially when it disrupts daily activities and leads to dehydration. Two common illnesses often responsible for ongoing vomiting are norovirus and influenza (flu). While both are viral infections, they affect the body differently and require distinct approaches to care. Understanding how to recognize norovirus, how it is diagnosed, and how long it lasts can help you respond appropriately and protect others from infection.
If you’re feeling sick and experiencing symptoms like persistent vomiting, AFC Urgent Care Stoneham is here to provide prompt relief from your symptoms. We’re open 7 days a week and provide same-day care for many common illnesses - all on a walk-in basis at our clinic in Stoneham, Massachusetts. Walk in today for same-day care, or save your spot online in advance below.
Norovirus Infection Symptoms
Norovirus is a highly contagious virus that primarily affects the stomach and intestines. Symptoms usually appear suddenly and are often more intense than those caused by the flu. Common signs include persistent vomiting, watery diarrhoea, nausea, stomach cramps, low-grade fever, headache, and body aches. In children and older adults, vomiting may be severe and frequent, increasing the risk of dehydration.
In contrast, flu-related vomiting is less common in adults and is usually accompanied by respiratory symptoms such as cough, sore throat, and congestion. If vomiting is the main symptom, norovirus is often the more likely cause.
How Norovirus Is Diagnosed
In most cases, norovirus is diagnosed based on symptoms and recent exposure, such as contact with someone who is ill or consumption of contaminated food or water. Laboratory testing of stool samples may be carried out during outbreaks or in severe cases, but it is not always necessary for routine diagnosis. Healthcare providers typically focus on symptom severity, duration, and signs of dehydration when assessing patients.
How Long Does Norovirus Last?
Norovirus symptoms usually develop within 12 to 48 hours after exposure. The most intense phase, marked by frequent vomiting and diarrhoea, often lasts 1 to 3 days. While most people recover fully within a few days, weakness and nausea may linger for up to a week.
Even after symptoms stop, individuals can remain contagious for several days, which makes proper hygiene especially important. Infants, elderly individuals, and those with weakened immune systems may experience prolonged or more severe illness.
How to Prevent Noroviruses
Preventing norovirus centres on strict hygiene practices. Wash hands thoroughly with soap and water, especially after using the toilet or before handling food. Alcohol-based hand sanitisers are less effective against norovirus and should not replace proper handwashing.
Additionally, disinfect contaminated surfaces promptly, wash fruits and vegetables carefully, cook shellfish thoroughly, and avoid preparing food for others while symptomatic and for at least 48 hours after recovery.
Visit AFC Urgent Care Stoneham for Norovirus Diagnosis and Treatment
Although norovirus often resolves on its own, persistent vomiting can quickly lead to dehydration and serious complications. You should seek medical care if vomiting lasts more than 24-48 hours, fluids cannot be kept down, or symptoms such as dizziness, confusion, severe abdominal pain, or reduced urination develop. At AFC Urgent Care Stoneham, we offer prompt medical evaluation to ensure timely treatment and prevent complications.
Our walk-in clinic is open 7 days a week from 8am to 8pm, and we treat a variety of common conditions, including norovirus! We accept most medical insurance plans, and have affordable rates for patients paying out-of-pocket for their medical care. Walk in today for rapid same-day care!
