Orphanet J Rare Dis 11 (1): 159, 2016. doi: 10.1186 / s13023 - 016 - 0543 - 7 Treatment of Ataxia-Telangiectasia Supportive care using prophylactic antibiotics or immune globulin (IgG) replacement therapy Treatment with prophylactic antibiotics or immune globulin may help patients with ataxia-telangiectasia.