When is an allergic reaction to raw plant food due to tree pollen?

The new guideline aims to help primary care clinicians distinguish pollen food syndrome (PFS) — an allergic reaction to certain raw, but uncooked plant foods — from other food allergies. Guidelines from the British Society for Allergy and Clinical Immunology (BSACI) focus on birch tree pollen, a PFS allergen in northern Europe. Providers may be …

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