Bcg vaccine

When TB is latent, it is not contagious. In active state, the disease can be communicable.<br />

The trouble with TB

5 min read . 18 Nov 2013
While there’s considerable reason for pessimism that all of the nearly 12, potential TB vaccines that are in various preliminary stages of research might fail, it could actually be an excellent learning opportunity for India. Photo: Pradeep Gaur/Mint<br /> (Pradeep Gaur/Mint)

India’s search for vaccines

1 min read . 10 Feb 2013