Common Variable Immunodeficiency (CVID) What is common variable
immunodeficiency (CVID)? CVID is an immunodeficiency disorder
characterized by a low level of antibodies, making it difficult
for the child's body to fight diseases. The child then becomes
sick with recurrent infections. The disease may become evident
during infancy, childhood, puberty, or even later into
adulthood. The symptoms of the disease are very different for
each child affected, which is why it is called a "variable"
group of disorders. What causes CVID? The cause of CVID is
unknown. In some cases, more than one individual in a family may
be affected, while in other cases this is not the case. There is
a decrease in the number of immunoglobulins (antibodies) in the
affected person. Immunoglobulins are produced by the body and
are necessary in fighting infections. What are the symptoms of
CVID? The following are the most common symptoms of CVID.
However, each child may experience symptoms differently.
Symptoms may include: - recurrent infe