I don’t think someone should correlate the extent of their reactions to the vaccine with protection from infection. We know that people who don’t respond to a vaccine in terms of the side effects still are well protected.

H. Cody Meissner, chief of the pediatric infectious diseases division at Tufts University School of Medicine in Boston, commenting to The Wall Street Journal for its story this week, “Covid-19 Vaccine Works, Even if Side Effects Differ for All, Doctors Say.”