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Agammaglobulinemia is a medical condition where the body produces few or no gamma globulins, which are proteins that include antibodies. Antibodies are crucial for developing immunity to infectious diseases. Individuals with agammaglobulinemia, or a related condition called hypogammaglobulinemia, frequently experience infections due to their inability to fight them off effectively. Immune serum globulin, a mixture of immunoglobulins, can be administered to provide passive immunity and is used to treat conditions like hypogammaglobulinemia.123

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