Could the PEG portion be responsible for IgE and non-IgE mediated COVID vaccine reactions? Both Moderna and Pfizer use the same 2000kd PEG for stability of the lipid nanoparticle. (Recall Miralax and PEG reactions...) Dr. A Postolova #RWCS2021 #RWCS @RWCSmtg @RheumNow https://t.co/ALXvR2h21z