Brill Zinsser Disease C0006181
Brill-Zinsser disease is a recurrent episode of typhus fever that can occur years after initial infection. It responds well to antibiotics and is typically milder than the original illness.
Key facts at a glance
- ICD-10
- B99.9
- ICD-11
- 1A00.0
- Body system
- infectious
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Fever or malaise
(infectious)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Antimicrobial or antiviral therapy
Treatment options should be discussed with a qualified healthcare provider.
Doxycycline antibiotic therapy
First-line tetracycline antibiotic that effectively targets Rickettsia prowazekii. Treatment typically continues for 7-14 days after fever resolution to prevent relapse.
Chloramphenicol
Alternative antibiotic option when tetracyclines are contraindicated. Requires monitoring for hematologic toxicity during treatment course.
Additional treatment options
Supportive care and rest
Adequate hydration and bed rest during acute febrile phase to support immune response and prevent complications.
lifestyleClinical monitoring
Regular assessment of temperature, vital signs, and organ function to ensure adequate response and detect potential complications.
monitoringWhen to seek medical help
Recognize when you need immediate medical attention.
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Frequently asked questions
Common questions about this topic.
What is Brill Zinsser Disease C0006181?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy