Hepatitis B Vaccination in Down's Syndrome and Other Mentally Retarded Patients
Rudolf A. Heijtink, Pieter De Jong, Solko W. Schalm, Nic Masurel – 1 July 1984 – The immune response after vaccination with H‐B‐VAX (20 μg, Months 0, 1 and 6) was investigated in 23 Down's syndrome patients and compared to that in 30 other mentally retarded patients and 32 staff members. About 90% of Down's syndrome and other mentally retarded patients and 100% of staff members had anti‐HBs at Month 9, but anti‐HBs less than 10IU per liter were found in 6/23 (26.1%) of Down's syndrome, 7/30 (23.3%) of other mentally retarded patients, in contrast to 2/32 (6.2%) of staff members.