COVID-19 Could IgG4 response lead to a lack of immune response to C-19? By Nooows.com MVP Posted on January 8, 2023 Share Tweet Share Share Email Comments What’s your Reaction?LeftNeutralRight Booster antibody follow up. What’s your Reaction?LeftNeutralRight Related Items:covid-19, mRNA Share Tweet Share Share Email Recommended for you Dr John Campbell: Vitamin A And Mystery Pneumonia In China Dr John Campbell Continues To Look At Excess Deaths For 2023 Dr John Campbell: Excess deaths in 2023 Click to comment You must be logged in to post a comment Login Leave a Reply Cancel replyYou must be logged in to post a comment.