COVID-19(8) SARS-CoV-2.(7) allergy(3) coronavirus(2) drug hypersensitivity(2) Asthma(2) Polyethylene glycol(2) SARS-CoV-2(2) Loss of Smell(2) contact system(1) Asthma Characterization(1) Vaccine excipients.(1) Drug provocation test(1) anaphylaxis(1) desensitization(1) allergen immunotherapy(1) Icatibant(1) Taste disorder.(1) First wave(1) impact factor(1) SARS-CoV-2 vaccine.(1) COVID-19 infection(1) Adverse drug reaction(1) Anosmia(1) Atopic diseases(1) Hospital admission(1) Exhaled nitric oxide(1) Polysorbates(1) Allergoid(1) Severe acute respiratory syndrome.(1)