Immunization against neonatal tetanus in New Guinea. 3. The toxin-neutralization test and the response of guinea-pigs to the toxoids as used in the immunization schedules in New Guinea.

The mouse toxin-neutralization test procedure described has been used for antitoxin titration of sera of New Guinea women following primary immunization with plain and adjuvant tetanus toxoids and following booster immunization, and for titration of guinea-pig sera.The responses of guinea-pigs immunized with the same toxoids and immunization schedule to simulate the human field trial studies were observed for 6 months. The relative antitoxin responses of guinea-pigs to the different toxoids were similar to those of the women.