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Updated: Aug 11, 2026

Immunization of Alpacas (Lama pacos) with Protein Antigens and Production of Antigen-specific Single Domain Antibodies
Published on: January 26, 2019
[Immuno-allergic accidents with rifamipcin]
B Flageul1, L Wagner, F Cottenot
1Service de Dermatologie du Pr Dubertret, Hôpital Saint-Louis, 1, avenue Claude-Vellefaux, 75475 Paris, France.
Abstract:
We report 2 new cases of immuno-allergic side-effects of rifampicin (RMP), occurred in leprosy patients treated by multidrug therapy. These cases illustrate the various features of this type of complication. In one case, the patient exhibited few days after restarting of RMP (600 mg daily), a typical flu syndrome associated to a thrombopenia. Previously, the patient had received discontinued RMP (300 mg, 3/5 days) that had to be stopped after 11 months for "general malaise" that in fact corresponded to a flu syndrome. The second patient developed a flu syndrome associated with a diffuse eczematous eruption one year after the onset of daily RMP (600 mg). Anti-RMP antibodies were detected only in the first case. The pathogenic mechanisms and the clinico-biologic features are discussed.
Insights
Two leprosy patients experienced immuno-allergic side effects from rifampicin (RMP) treatment, including flu-like symptoms and low platelets or rash. These cases highlight RMP
Area of Science:
- Immunology
- Pharmacology
- Dermatology
Background:
- Leprosy treatment often involves multidrug therapy (MDT).
- Rifampicin (RMP) is a key component of MDT for leprosy.
- Immuno-allergic reactions to RMP can occur, necessitating careful monitoring.
Observation:
- Two leprosy patients developed adverse reactions during RMP treatment.
- Case 1: Flu-like syndrome and thrombocytopenia after restarting RMP.
- Case 2: Flu-like syndrome and eczematous eruption after one year of RMP.
Findings:
- Anti-RMP antibodies were detected in one patient.
- Reactions manifested as flu syndrome, thrombocytopenia, and rash.
- The timing and presentation of reactions varied.
Implications:
- These cases underscore the diverse clinical spectrum of RMP-induced immuno-allergic side effects.
- Understanding these reactions is crucial for optimizing leprosy management.
- Further research into pathogenic mechanisms may improve patient safety.
Related Concept Videos
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Allergic Drug Reactions
Drug Toxicity: Allergic Reactions
Allergic Reactions: Anaphylaxis
Hypersensitivity Reactions: Cytolytic Reactions
Hypersensitivity Reactions: Immune-Complex Reactions

