Tuberculosis epidemic in India is "larger" than what was previously estimated, the World Health Organisation (WHO) on Thursday said while asserting that the country was one of six nations which accounted for 60 per cent of the new cases in 2015.
The Global Tuberculosis Report 2016 which was released on Thursday, however, said the number of TB deaths and incidences rate continue to fall globally as well as in India.
"The TB epidemic is larger than previously estimated, reflecting new surveillance and survey data from India. However, the number of TB deaths and the TB incidence rate continue to fall globally and in India," WHO said.
It said that in 2015, there were an estimated 10.4 million new (incident) TB cases worldwide, of which 5.9 million (56 per cent) were among men, 3.5 million (34 per cent) among women and 1.0 million (10 per cent) among children while people living with HIV accounted for 1.2 million (11 per cent) of all new TB cases.
"Six countries accounted for 60 per cent of the new cases- India, Indonesia, China, Nigeria, Pakistan and South Africa. Global progress depends on major advances in TB prevention and care in these countries," the global health body said in its report.
"In 2015, there were an estimated 480000 new cases of multidrug-resistant TB (MDR-TB) and an additional 100000 people with rifampicin-resistant TB (RR-TB) who were also newly eligible for MDR-TB treatment.
"India, China and the Russian Federation accounted for 45 per cent of the combined total of 580000 cases. There were an estimated 1.4 million TB deaths in 2015, and an additional 0.4 million deaths resulting from TB disease among people living with HIV. Although the number of TB deaths fell by 22 per cent between 2000 and 2015, TB remained one of the top 10 causes of death worldwide in 2015," it said.
WHO said that in 2015, 6.1 million new TB cases were notified to national authorities and reported to WHO while notified TB cases increased from 2013?2015, mostly due to a 34 per cent increase in notifications in India.
"However, globally there was a 4.3 million gap between incident and notified cases, with India, Indonesia and Nigeria accounting for almost half of this gap. The crisis of MDR-TB detection and treatment continues.
"In 2015, of the estimated 580000 people newly eligible for MDR-TB treatment, only 125000 (20 per cent) were enrolled.
Five countries accounted for more than 60 per cent of the gap - India, China, the Russian Federation, Indonesia and Nigeria," it said.
WHO said that the upward revisions to estimates of the burden of TB disease in India for the period 2000-2015 follow accumulating evidence that previous estimates were "too low".