Common Variable Immunodificiency(CVID)■ difinition: common defects in B-cell function and acquired agammaglobulinaemia ... - end of infusion & continue for several hours: Headache, chills, fever, myalgia, fatigue⇒ trestememt ... for treatment of complications : endoscopic sinus surgery, spleenectomy㉢ Diet : high-calorie diet(high-energy