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Updated: Aug 14, 2026
Methods for Image-based Surveys of Benthic Macroinvertebrates and Their Habitat Exemplified by the Drop Camera Survey for the Atlantic Sea Scallop
Published on: July 2, 2018
Sensitization to king scallop (Pectin maximus) and queen scallop (Chlamys opercularis) proteins
R M Barraclough1, J Walker, N Hamilton
1Health and Safety Laboratory, Harpur Hill, Buxton SK17 9JN, UK. Richard.Barraclough@hsl.gov.uk
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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