ART4 and allergic disease: A review by Selvaraj et al. (33) mentioned that allergies to egg, fish, milk, shellfish and tree nuts are due to water-soluble glycoproteins, which are also present in nucleoside-modified mRNA vaccines (BNT162b2 and mRNA-1273) when translated into fragments of the spike glycoprotein of SARS-CoV-2, potentially triggering an anaphylaxis reaction in some vaccinated individuals.