Bacterial Gastroenteritis
Bacterial Gastroenteritis, often referred to as 'stomach flu' or 'food poisoning,' is an inflammation of your stomach and intestines caused by harmful bacteria. Unlike viral gastroenteritis, which is caused by viruses, this condition specifically involves a bacterial infection that irritates your digestive tract, leading to a range of uncomfortable symptoms. The severity can vary, from mild discomfort to more serious illness requiring medical attention. You can typically contract bacterial gastroenteritis by consuming food or water contaminated with these bacteria, through close contact with an infected person, or by poor hand hygiene. Common bacterial culprits include species like Salmonella, E. coli, Campylobacter, and Shigella. These bacteria produce toxins or directly invade the lining of your intestines, disrupting normal digestion and absorption, which leads to the characteristic symptoms. Lab tests, such as stool cultures, are crucial for accurately diagnosing bacterial gastroenteritis and differentiating it from other causes of digestive upset. These tests help identify the specific type of bacteria causing your illness. This information is vital because it guides your doctor in choosing the most effective treatment, such as whether antibiotics are necessary (as they are not always for viral infections), helps to prevent further spread of the infection, and ensures you receive the most appropriate care tailored to your specific infection.
Common Symptoms
- Diarrhea (which may be watery or bloody)
- Nausea
- Vomiting
- Abdominal cramps or pain
- Fever
- Headache
- Loss of appetite
Clinical Sources
- Gastroenteritis: What It Is, Symptoms, Causes & TreatmentCleveland Clinic
- Gastroenteritis: First aid - Mayo ClinicMayo Clinic
- Gastroenteritis | Stomach Flu | MedlinePlusMedlinePlus
Diagnostic Lab Tests
Tests commonly used to diagnose or monitor Bacterial Gastroenteritis:
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