Stomach flu is often caused by viruses called noroviruses, which can spreadthrough food, from person to person, or via contaminated surfaces. Stomach flu is not at all related to influenza and is not caused by one particular virus.
Symptoms If it’s a cold If it’s the flu Fever rare usual Headache rare common General aches, pains slight usual; often severe Tiredness, weakness sometimes usual; can last 2 to 3 weeks Extreme exhaustion never usual; when first become sick Stuffy nose common sometimes Sneezing usual sometimes Sore throat common sometimes Chest discomfort, cough mild to moderate hacking cough common; can become severe Can Flu Be Prevented.
