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Asthma associated with a circulating IgG antibody to Calliphora maggots
Clinical Allergy
|March 1, 1982
Summary
Delayed onset asthma in an angler was linked to exposure to Blue Bottle fly maggots. Investigations revealed IgG antibodies to maggot extract, suggesting an allergic reaction and potential immune complex disease.
Area of Science:
- Allergology
- Immunology
- Occupational Health
Background:
- Asthma can be triggered by various environmental exposures.
- Occupational asthma affects individuals based on their work or hobbies.
- Delayed onset symptoms can complicate diagnosis.
Observation:
- A case report details an angler experiencing delayed asthma symptoms after fishing.
- Exposure involved handling Calliphora (Blue Bottle) maggots.
Findings:
- Diagnostic investigations identified a circulating IgG antibody.
- The antibody was specific to a crude water-soluble maggot extract.
- The patient's condition evolved to suggest immune complex disease.
Implications:
- This case highlights maggots as a potential, unrecognized allergen.
- It underscores the importance of considering occupational/hobby exposures in asthma diagnosis.
- Further research may be needed to understand maggot-induced hypersensitivity.