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Background
Eosinophilic oesophagitis (EoE) is associated with elevated IgG4 in oesophageal tissue and serum. Previously, we showed brush‐collected oesophageal secretions of EoE patients contained food antigen‐specific antibodies IgA and IgG4. It is unknown whether other food‐specific antibodies are present along the surface of the oesophagus in EoE.
Aim
To identify whether immunoglobulins other...