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Immunodiagnosis of snake bite
British Medical Journal
|December 28, 1974
Summary
Accurate snake bite management depends on identifying the snake species. Immunodiagnosis using patient samples successfully identified venom in 40% of cases, aiding in species diagnosis.
Area of Science:
- Toxicology
- Immunology
- Clinical Medicine
Background:
- Snake bite management is critical and often relies on accurate species identification.
- Clinical diagnosis of snake species based on patient history and physical signs can be unreliable.
Purpose of the Study:
- To investigate the feasibility of using immunological methods for snake species diagnosis in bite victims.
- To assess the efficacy of immunodiffusion assays in detecting snake-specific venoms in patient samples.
Main Methods:
- Wound aspirates, blister fluids, sera, and urine samples were collected from 101 snake bite patients.
- Immunodiffusion assays were employed to detect species-specific snake venoms in the collected biological samples.
Main Results:
- A positive species diagnosis was achieved in 40 out of 101 patients (approximately 39.6%).
- Immunodiagnosis demonstrated particular success in identifying bites from the puff adder (Bitis arietans) and the African spitting cobra (Naja nigricollis).
Conclusions:
- Immunodiagnosis offers a viable method for identifying snake species in bite victims when clinical diagnosis is uncertain.
- Enhancing assay sensitivity and specificity with improved antisera could further increase the success rate of immunodiagnosis in snake envenomation cases.