[Further research on an experimental justification for the emergency prophylaxis of typhoid]

Experiments were conducted on mice. A possibility was demonstrated of express prophylaxis of typhoid fever by subcutanoues injection of the vaccine and by oral administration of sodium nucleinate, of lowering the dose by half and replacement of revaccination by sodium nucleinate alone. An increase in the titre of typhoid agglutinins and of preventive activity of the blood serum was revealed on volunteers.