AGAMMAGLOBULINAEMIA An inherited condition found in male infants, in which there is no gamma-globulin in the blood. These children are particularly susceptible to infections as they are unable to form antibodies to any infecting micro-organism. Acquired Ugammaglobulinaemia is a rare disorder occurring in both sexes in their twenties and forties, characterized by recurrent bacterial infections. The cause is a disturbance in the working of the immune system