A Guide to Gastroenteritis (Viral vs. Bacterial)
- Dr Mathew Rogers
- Apr 22, 2024
- 2 min read

Gastroenteritis, often referred to as the "stomach flu," is a common gut ailment causing unpleasant digestive woes. While it might feel miserable, it usually resolves on its own within a few days. But what's causing all the commotion in your digestive system? This blog post will differentiate between viral and bacterial gastroenteritis, exploring their symptoms, treatment approaches, and prevention tips.
Viral Gastroenteritis: The Speedy Culprit
Viral gastroenteritis is the most common culprit behind stomach flu, accounting for roughly 70% of cases. Here's what to watch out for:
Symptoms:
Nausea and vomiting
Watery diarrhea
Abdominal cramps
Low-grade fever (may not be present)
Muscle aches
Headache
Cause: Highly contagious viruses, like rotavirus or norovirus.
Treatment: Focuses on rehydration and managing symptoms.
Drink plenty of fluids to prevent dehydration, especially clear liquids like water or broth.
Over-the-counter medications can help manage fever and aches (consult your doctor for appropriate dosage based on age).
Rest is crucial for recovery.
Prevention: Frequent handwashing and proper hygiene are vital. Disinfect surfaces and avoid close contact with people who are sick.
Bacterial Gastroenteritis: A Trickier Troublemaker
Bacterial gastroenteritis, while less common than viral, can cause more severe symptoms. Here's how to identify it:
Symptoms:
Similar to viral gastroenteritis, but often with:
Higher fever
Bloody stools
Severe abdominal pain
Cause: Bacteria like E. coli or Salmonella from contaminated food or water.
Treatment:
Rehydration is still crucial.
Depending on the severity, antibiotics may be prescribed by a doctor to combat the bacteria.
In some cases, intravenous fluids might be needed to address dehydration.
Prevention: Practice safe food handling techniques. Cook food thoroughly, refrigerate leftovers promptly, and wash fruits and vegetables before consumption. Be cautious about consuming food or water from unreliable sources while traveling.
When to See a Doctor:
Regardless of the type, seek medical attention if you experience:
Severe or persistent vomiting (unable to keep fluids down)
Bloody stools
Signs of dehydration (dizziness, lightheadedness, decreased urination)
High fever (above 102°F or 38.9°C)
Symptoms lasting longer than 3 days
Your Best Defense: Knowledge and Prevention
By understanding the differences between viral and bacterial gastroenteritis, you can take appropriate steps to manage symptoms and prevent future occurrences. Remember, frequent handwashing, proper food hygiene, and maintaining good gut health are your best allies in keeping your digestive system happy!
The 2 Sick 4 School App Can Help!
Feeling overwhelmed by tummy troubles? The 2 Sick 4 School App can be your one-stop resource for all things gut health! Download the app today (available on the Apple App Store: https://apps.apple.com/us/app/2-sick-4-school/id6470159416)) and find valuable information on gastroenteritis, including:
Detailed information on both viral and bacterial causes
Symptoms, treatment options, and home care tips for each type
Effective prevention strategies to minimize your risk
Don't let gastroenteritis slow you down! With the knowledge from this blog post and the 2 Sick 4 School App at your fingertips, you can navigate tummy troubles with confidence and get back to feeling your best.
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