Tetanus, especially tetanus neonatorum (T.N.) continues to be a significant medical and social problem in the developing countries. The case mortality rate remains very high even in the 'developed' countries, varying from 60-80 percent in various reports, and even higher in the case of tetanus neonatorum. Sanders et al had introduced the method of intrathecal injection of antitetanus serum (ATS) in 1976 and have achieved very encouraging results. As the conventional treatment of tetanus neonatorum had achieved very poor result, even in the very sophisticated centres, a case of tetanus neonatorum admitted to Cottage Hospital Semporna in Sabah had been treated with intrathecal ATS since June 1982. This paper reviews the results of this new approach to tetanus neonatorum treatment as compared to cases treated conventionally.