Occupational allergy to squid (Loligo vulgaris)

Area of Science:

• Allergology
• Occupational Medicine
• Immunology

Background:

• Occupational allergies to seafood are uncommon, with most cases presenting as skin reactions like contact dermatitis or urticaria.
• Previous literature has rarely documented respiratory or ocular allergies linked to occupational squid exposure.

Observation:

• A 33-year-old seafood production worker developed symptoms of asthma, rhinitis, conjunctivitis, and contact urticaria.
• The worker exhibited increased eosinophils in nasal and tear fluids following a specific inhalation challenge test (SICT) with squid extract.

Findings:

• The study confirmed IgE-mediated sensitization to squid through positive skin prick tests and open skin tests.
• The SICT established a clear and significant association between occupational squid exposure and allergic reactions affecting the respiratory system and conjunctiva.

Implications:

• This case highlights occupational asthma and other allergic conditions as potential risks in seafood processing.
• Further research into squid allergens and preventative measures for exposed workers is warranted.
• Diagnostic protocols for occupational allergies should consider respiratory and ocular symptoms in seafood handlers.