Experimental studies on the duration of immunity in dogs vaccinated against rabies

The results of laboratory investigations on the duration of immunity in dogs vaccinated against rabies are summarized; the experiments demonstrated that dogs vaccinated with phenol-treated killed-virus vaccine show a high degree of immunity at one year after inoculation and that the immunity produced with the Flury-strain live-virus vaccine is superior to, and of longer duration than, that obtained with chemically-treated brain-tissue virus vaccine.