Disposable unit-dose BCG vaccine for multi-puncture vaccination.

The disposable unit-dose BCG vaccine for multipuncture has some advantages in that the vaccination can be performed immediately without arrangements even by laymen, anytime, anywhere when needed, with no chance of contamination as hepatitis infection. No decrease of potency at vaccination, and no wastage of vaccine was observed. This vaccine showed the stability of potency the same as multi-dose vaccine. The tuberculin conversion rates and local lesions induced by this vaccine on babies and infants were observed to be the same as the multi-dose vaccine.