Definition for Common variable immune deficiency
From Biology Forums Dictionary
Common variable immune deficiency (CVID) is a disorder that damages the immune system. Because their immune system cannot adequately protect them, people with CVID can develop recurrent infections in the lungs, sinuses, or ears. Over time, recurrent lung infections can lead to chronic lung disease and life-threatening breathing problems. Most people with CVID also have pneumonia at least once in their life. Affected individuals may also experience gastrointestinal problems, such as infections or inflammation. These problems can cause bloating, diarrhea, decreased absorption of nutrients, and weight loss. For reasons that are unclear, some people with CVID have enlarged lymph nodes or an enlarged spleen (splenomegaly).
