Typhoid management
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"typhoid fever"[MeSH Terms] AND treatment
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Typhoid Fever (Enteric Fever) - Management
Cause and transmission: Typhoid fever is caused by Salmonella Typhi (paratyphoid by S. Paratyphi), transmitted via food/water contaminated by feces or urine from infected persons or carriers. It remains endemic in areas with poor sanitation (South/Southeast Asia, Africa), with an estimated 9 million cases and 110,000 deaths annually worldwide - Sabiston Textbook of Surgery, p. 1965-1966.
Diagnosis
- Clinical suspicion in a patient with fever >10 days plus headache, abdominal pain/distension, constipation (about 30% of patients) or diarrhea, relative bradycardia despite high fever, and possible rose spots (pale red macules on the trunk) - Tintinalli's Emergency Medicine, p. 3379.
- Confirmed by blood, stool, urine, or bone marrow culture (bone marrow culture is most sensitive, even after antibiotics started). The Widal serology test is now considered nonspecific and outdated - Sabiston, p. 1966; Tintinalli's, p. 3385.
Antibiotic treatment
Empirical antibiotics should be started promptly once typhoid is suspected in a returning traveler or endemic-area patient - do not wait for culture confirmation, since early treatment reduces complications and mortality.
- First-line agents: Fluoroquinolones (ciprofloxacin), third-generation cephalosporins (cefixime, ceftriaxone), or azithromycin - duration depends on severity.
- Resistance concerns: Fluoroquinolone resistance is rising, particularly in strains from South/Southeast Asia (nalidixic acid-resistant S. Typhi). Ampicillin, trimethoprim-sulfamethoxazole, and chloramphenicol are now unreliable due to widespread resistance, though chloramphenicol was historically first-line - Tintinalli's, p. 3387; Sabiston, p. 1966.
- A 2024 systematic review of RCTs (PMID: 39623850) found oral azithromycin has comparable or superior clinical efficacy to other antimicrobials (ceftriaxone, fluoroquinolones, chloramphenicol) for typhoid across age groups, supporting its use especially where resistance is a concern.
- Severe disease (typhoid encephalopathy/meningitis or shock): add adjunctive dexamethasone alongside antibiotics - Tintinalli's, p. 3387.
Supportive care
- IV fluid rehydration
- Blood transfusion if significant GI blood loss occurs
- Monitor for relapse after apparent clinical improvement
Complications and their management
| Complication | Management |
|---|---|
| GI hemorrhage (from Peyer patch ulceration, up to ~20% historically) | Usually managed with transfusion; laparotomy only if bleeding is uncontrollable/life-threatening |
| Intestinal perforation (~2% of cases, typically single perforation of terminal ileum) | Simple surgical closure is treatment of choice |
| Multiple perforations (~25% of perforation cases) | May require bowel resection with primary anastomosis, or exteriorization of the loop |
| Typhoid meningitis/encephalitis, shock | Antibiotics plus dexamethasone |
| Other: myocarditis, cholecystitis, renal failure, disseminated intravascular coagulation, septic arthritis, mycotic aneurysm | Manage per specific complication; supportive care |
Untreated typhoid carries 10-20% mortality, disproportionately in young children - Tintinalli's, p. 3387.
Prevention
- Typhoid vaccines: live attenuated oral Ty21a (4 doses, one every other day, repeat every 5 years if at risk) or injectable Vi capsular polysaccharide vaccine (single dose, booster every 2 years if at risk). Efficacy is only about 50-55% at 2.5-3 years, so food and water precautions remain essential even in vaccinated travelers - Goldman-Cecil Medicine, p. 1837.
- Newer typhoid conjugate vaccines (TCV) show good real-world effectiveness in children per recent Cochrane and meta-analysis data (PMID: 40326553, 2025; PMID: 41125003, 2025), and are increasingly used in endemic-country immunization programs.
- Improved sanitation and safe water/food practices remain the most important public health measures.
Let me know if you want me to go deeper into any specific area - for example dosing regimens, pediatric considerations, drug-resistant typhoid strains, or surgical technique for perforation repair.
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