Fig. 1From: COVID-19 vaccine testing & administration guidance for allergists/immunologists from the Canadian Society of Allergy and Clinical Immunology (CSACI)Algorithm of Evaluation in a Patient with a History of Allergy Prior to COVID-19 Vaccination. *Identified allergenic component of the COVID-19 vaccine is polyethylene glycol (PEG). **Unrelated allergic conditions include food allergy (irrespective of severity), allergic rhinitis, asthma, eczema, stinging insect allergyBack to article page