Passive transfer of Ab can occur w #IVIg #Ab can occur from IVIg passive transfer incl HepB IVIg - if pt has #cryoglobulins 👇 Can precipitate severe #cryo flare #ClinicalPearl Secrets & Pearls session #ACR25 @RheumNow @ACRheum https://t.co/tTaSuVy1yQ