What People With Allergies Should Know About Covid Vaccines December 18, 2020 Auto Bot allergies, Asthma, Clinical Trials, Coronavirus (2019-nCoV), Immune System, Vaccination and Immunization, your-feed-healthcare 0 Four people so far have had allergic reactions after getting the Pfizer-BioNTech vaccine. Experts say that shouldn’t deter most people from getting a jab.