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Case Reports
. 2006 Jan;56(1):63-6.
doi: 10.1093/occmed/kqi175.

Sensitization to king scallop (Pectin maximus) and queen scallop (Chlamys opercularis) proteins

R M Barraclough  1 , J Walker, N Hamilton, D Fishwick, A D Curran
Affiliations
Case Reports

Sensitization to king scallop (Pectin maximus) and queen scallop (Chlamys opercularis) proteins

R M Barraclough et al. Occup Med (Lond). 2006 Jan.

Abstract

Objective: To report a case of occupational asthma and urticaria due to the queen scallop (Chlamys opercularis) and king scallop (Pectin maximus).

Background: A 40-year-old female worked in a shellfish-processing plant, handling king and queen scallops for 5 years. At the time of investigation, she described a 2-year history of work-related respiratory symptoms.

Methods: Serial peak expiratory flow rate readings were recorded and an OASYS study completed. A workplace visit was undertaken and specific immunoglobulin (IgE) radioallergosorbent (RAST) testing of scallop extracts was performed.

Results: The OASYS study was consistent with occupational asthma. RAST testing demonstrated evidence of specific sensitization (IgE) to queen and king scallop. There was also some cross-reactivity observed with other shellfish (prawns and crabs).

Conclusion: Workers exposed to aerosols from scallop species are at risk of occupational asthma and require effective respiratory health surveillance.

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