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Gastroenteritis

An infection of the stomach and intestines causing vomiting, diarrhea, and stomach cramps. Often called 'gastro' or 'stomach flu'.

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Common Symptoms of Gastroenteritis

Nausea and vomiting

Watery diarrhea

Stomach cramps and pain

Low-grade fever

Headache

Muscle aches

Loss of appetite

Fatigue

How We Can Help

What we can help with

Medical certificates for gastro-related absences
Advice on rehydration and symptom management
Assessment of severity
Guidance on food handlers returning to work

What needs in-person care

IV fluids for severe dehydration
Treatment for bloody diarrhea (requires in-person assessment)
Care for vulnerable patients with severe symptoms

When to see a doctor

1
Symptoms lasting more than 2-3 days
2
Signs of dehydration (dark urine, dizziness, dry mouth)
3
Unable to keep fluids down for 24 hours
4
Blood in vomit or stool
5
You need a medical certificate for work

Seek emergency care if

Severe dehydration (confusion, rapid heartbeat, no urination)
Blood in vomit or stool
Severe abdominal pain
High fever over 39°C
Symptoms in very young children or elderly

Call 000 or go to your nearest emergency department

Common Questions About Gastroenteritis

How long should I stay home with gastro?

You should stay home until 48 hours after your last episode of vomiting or diarrhea. This is especially important if you work with food, healthcare, or childcare.

Can I get a medical certificate for gastro?

Yes. Gastroenteritis is a legitimate reason for a medical certificate. Our doctors can provide one after assessing your symptoms.

What should I eat and drink with gastro?

Focus on clear fluids like water, oral rehydration solutions, and clear broths. Avoid dairy, caffeine, and fatty foods until symptoms resolve. Gradually reintroduce bland foods.

Is gastro contagious?

Yes, very. It spreads through contaminated food, water, and contact with infected people. Good hand hygiene is essential to prevent spreading it to others.

Ready to get help?

Our Australian-registered doctors are available now. Most consultations completed within an hour.