[Asthma caused by Lucilia Caesar larvae: clinical and immunologic study]

Area of Science:

• Allergen sensitization
• Immunological responses to environmental exposures
• Occupational and recreational allergies

Background:

• Lucilia Caesar larvae (LCL) are commonly used as live fish bait.
• Anglers and fish bait handlers may experience occupational or recreational exposure to LCL.
• Previous reports suggest potential adverse health effects from LCL exposure.

Observation:

• Five cases of asthma and rhinoconjunctivitis linked to LCL exposure are presented.
• Symptoms included work-related asthma in bait handlers and asthma in anglers.
• One individual experienced asthma, rhinoconjunctivitis, and contact urticaria.

Findings:

• Peak expiratory flow rate (PEFR) monitoring indicated LCL-related asthma in 3 of 4 subjects.
• Cutaneous prick tests were positive to LCL extracts in 3 of 4 symptomatic individuals.
• Specific IgE antibodies against LCL extracts were detected in 4 of 5 subjects with LCL-related asthma.

Implications:

• LCL emanations are identified as potent sensitizers capable of inducing allergic respiratory diseases.
• The findings highlight the need for awareness and potential protective measures for individuals handling or exposed to LCL.
• This research contributes to understanding environmental allergens and their role in IgE-mediated asthma.