Diagnosis of fish and shellfish allergies

Wai Sze Tong, Agatha W.T. Yuen, Christine Y.Y. Wai, Nicki Y.H. Leung, Ka Hou Chu, Patrick S Leung

Research output: Contribution to journalReview articlepeer-review

14 Scopus citations


Seafood allergy is a hypersensitive disorder with increasing prevalence worldwide. Effective and accurate diagnostic workup for seafood allergy is essential for clinicians and patients. Parvalbumin and tropomyosin are the most common fish and shellfish allergens, respectively. The diagnosis of seafood allergies is complicated by cross-reactivity among fish allergens and between shellfish allergens and other arthropods. Current clinical diagnosis of seafood allergy is a complex algorithm that includes clinical assessment, skin prick test, specific IgE measurement, and oral food challenges. Emerging diagnostic strategies, such as component-resolved diagnosis (CRD), which uses single allergenic components for assessment of epitope specific IgE, can provide critical information in predicting individualized sensitization patterns and risk of severe allergic reactions. Further understanding of the molecular identities and characteristics of seafood allergens can advance the development of CRD and lead to more precise diagnosis and improved clinical management of seafood allergies.

Original languageEnglish (US)
Pages (from-to)247-260
Number of pages14
JournalJournal of Asthma and Allergy
StatePublished - Jan 1 2018


  • Component-resolved diagnosis
  • ImmunoCAP
  • ISAC
  • Skin prick test

ASJC Scopus subject areas

  • Immunology and Allergy
  • Pulmonary and Respiratory Medicine


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