Updated on 20 February 2013
WHO – Serological TB diagnostics tests are unreliable and must be banned
Every year, an estimated 1.5 million patients are subjected to the diagnostic tests of Mycobacterium tuberculosis in India. Furthermore, out of the 75 new sputum positive cases of TB that are reported every year, about two percent are confirmed to be of the drug-resistant variety.
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The adverse scenario is further compounded by the lack of reliable serological diagnostic tests. The lack of a dependable serological test is so acute that even the World Health Organization (WHO) in its policy recommendation suggested that a ban be implemented on such tests as unreliable serological tests give imprecise results and cause inconsistent diagnosis of TB, thus leading to risk to human lives.