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    Created in 2008, Phoenix Rising is the largest and oldest forum dedicated to furthering the understanding of, and finding treatments for, complex chronic illnesses such as chronic fatigue syndrome (ME/CFS), fibromyalgia, long COVID, postural orthostatic tachycardia syndrome (POTS), mast cell activation syndrome (MCAS), and allied diseases.

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    Hypogammaglobulinaemia after rituximab treatment—incidence and outcomes

    What is the status on the role of the neonatal Fc receptor in this? Ten years ago, when I worked in the field (immunology), the FcRn was thought to play a role. Normally it prolongs the half life of antibodies, but if saturated with IVIG antibodies, our own antibodies will get a shorter t1/2. Is...