Diseases and Conditions
Norovirus infection
Overview
Symptoms
Causes
Risk factors
Complications
Prevention
Diagnosis
Treatment
Lifestyle and home remedies
Preparing for an appointment
Diagnosis
Diagnosis is usually based on your symptoms, but norovirus can be identified from a stool sample. If you are immunocompromised or have other health problems, your doctor might recommend a stool test to confirm the presence of norovirus.