B. PetchclaiP. SuwattikaMahidol University2018-06-012018-06-011978-12-01Journal of the Medical Association of Thailand. Vol.61, No.12 (1978), 672-674012522082-s2.0-0018227262https://repository.li.mahidol.ac.th/handle/20.500.14594/13086In many parts of the world tetanus neonatorum and diphtheria are serious problems and the immunologic status of the infants and their mothers is largely unknown. Antitoxin levels for these two diseases were determined in 109 pairs of mothers and infants in Thailand using an indirect hemagglutination technique. Antitoxin levels were found to be inadequate in a high percentage of mothers while infants had even less protection with only 6.4 per cent having a protective level of tetanus antitoxin. This high risk of tetanus neonatorums indicates the need for appropriate protective immunization of pregnant women.Mahidol UniversityMedicineArticleSCOPUS