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Viral-like reaction or hypersensitivity? Erythema multiforme minor reaction and moderate eosinophilia after receiving Pfizer-BioNTech BNT162b2 (mRNA-based SARS-CoV-2 vaccine)

de las Vecillas L1*, López J1*, Morchón E1, Rodriguez F1, Drake M2, Martino M3

1Department of Allergy, Marqués de Valdecilla University Hospital, Instituto de Investigación Marques de Valdecilla (IDIVAL), Santander, Spain
2Department of Dermatology, Marqués de Valdecilla University Hospital, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
3Department of Pathology, Marqués de Valdecilla University Hospital, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
*Both can be considered as first author

J Investig Allergol Clin Immunol 2022; Vol. 32(1)
doi: 10.18176/jiaci.0757

Key words: COVID-19, Vaccine, Hypersensitivity Erythema Multiforme, Eosinophilia