2 ms·
The tuberculosis vaccine might not be the best example, it lacks efficacy in some places, for an unknown reason or reasons, such as the US and India.
by Vecr 6y ago
The tuberculosis vaccine might not be the best example, it lacks efficacy in some places, for an unknown reason or reasons, such as the US and India.
- selimthegrim 6y agoDoes India still use BCG?
- valarauko 6y agoYes, India still uses BCG.