Doctors soon may be capable of identifying it through a blood test if someone is possibly going to develop the active and dangerous kind of tuberculosis.

Scientists are of the belief that they have been successful in finding a method through which they would be able to recognize those 10% of individuals who are infected with TB and those who will ultimately develop the full-blown condition from the 90% healthy beings having dormant type of the lung infectivity.

It means that doctors would be able to keep their attention on one in 10 people with the infection, who are running an elevated risk of becoming extremely ill, instead of merely attempting to administer potent anti-TB drugs to any and everyone, who may exhibit signs of TB virus.

Almost 2 million people all through the world are found suffering from TB every year, and the majority of cases are seen in the developing nations. However, the disease has as well staged a comeback in developed nations.

In Britain, 9,153 cases were witnessed in 2009, which has been deemed as the biggest annual increase ever since 2005, with nine out of 10 cases seen to have occurred in ethnic minority groups.