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Gastrointestinal Tract Infections
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Helicobacter pylori Infection
Causative agent: Helicobacter pylori bacteria. Symptoms: Stomach pain, bloating, nausea, and tarry stools. Treatments: Antibiotics and acid-suppressing medications.
Clostridium difficile Infection
Causative agent: Clostridium difficile bacteria. Symptoms: Watery diarrhea, fever, abdominal pain, loss of appetite. Treatments: Discontinuation of causative antibiotics, specific antibiotic treatment, fecal microbiota transplant in recurrent cases.
Shigellosis
Causative agent: Shigella bacteria. Symptoms: Diarrhea (often bloody), fever, abdominal pain, tenesmus. Treatments: Antibiotics, rehydration therapy, and rest.
Cryptosporidiosis
Causative agent: Cryptosporidium parasites. Symptoms: Watery diarrhea, stomach cramps or pain, dehydration, nausea, vomiting, fever and weight loss. Treatments: Anti-parasitic drugs, such as nitazoxanide, and supportive care with fluid and electrolyte replacement.
Amoebiasis (Entamoeba histolytica)
Causative agent: Entamoeba histolytica parasite. Symptoms: Loose stool, stomach pain, and stomach cramping. Treatments: Metronidazole followed by a luminal agent such as paromomycin or iodoquinol.
Escherichia coli Infection
Causative agent: Escherichia coli bacteria. Symptoms: Diarrhea (may be bloody), abdominal pain, and fever. Treatments: Rehydration, supportive care, antibiotics for specific strains.
Hepatitis A
Causative agent: Hepatitis A virus. Symptoms: Fatigue, nausea, abdominal pain, and jaundice. Treatments: Vaccine prevention, supportive care including rest and rehydration, monitoring liver function.
Campylobacteriosis
Causative agent: Campylobacter bacteria. Symptoms: Diarrhea (often bloody), fever, and abdominal cramps. Treatments: Antibiotics such as erythromycin or azithromycin if severe, supportive care with fluids.
Norovirus Infection
Causative agent: Norovirus. Symptoms: Acute onset of vomiting, watery diarrhea, abdominal pain, and sometimes fever. Treatments: Symptomatic with rehydration therapy, maintaining electrolyte balance, rest.
Rotavirus Infection
Causative agent: Rotavirus. Symptoms: Severe diarrhea, vomiting, fever, and abdominal pain. Treatments: Oral rehydration solutions, intravenous fluids in severe cases, rotavirus vaccination for prevention.
Giardiasis
Causative agent: Giardia lamblia parasite. Symptoms: Diarrhea, gas, stomach or abdominal cramps, and nausea. Treatments: Anti-parasitic medications such as metronidazole or tinidazole.
Salmonellosis
Causative agent: Salmonella bacteria. Symptoms: Diarrhea, fever, abdominal cramps, vomiting. Treatments: Fluid replacement, antibiotics in severe cases, rest.
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