Return of the 'White Plague': Fears over the rise of 'incurable' TB

Meera Senthilingam, for CNN

Updated 1508 GMT (2308 HKT) January 5, 2015

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Globally, TB kills more than a million people a year. While the disease is treatable, drug-resistant strains are emerging. Pictured, an Indian TB patient outside the Rajan Babu Tuberculosis Hospital in New Delhi.

Photos: Return of the 'White Plague': Fears over the rise of 'incurable' TB

Drug-resistant TB – Globally, TB kills more than a million people a year. While the disease is treatable, drug-resistant strains are emerging. Pictured, an Indian TB patient outside the Rajan Babu Tuberculosis Hospital in New Delhi.

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India leads the world for new TB cases, with more than 2 million in 2012. In 2011 Indian doctors reported cases of "totally drug resistant" TB.

Photos: Return of the 'White Plague': Fears over the rise of 'incurable' TB

Drug-resistant TB – India leads the world for new TB cases, with more than 2 million in 2012. In 2011 Indian doctors reported cases of "totally drug resistant" TB.

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This rendering shows drug-resistant <em>Mycobacterium tuberculosis</em> bacteria, which cause TB. When people with lung TB cough, sneeze or spit, they propel TB bacteria into the air. <br />A third of the world's population has latent TB, which means they have been infected by TB bacteria but are not (yet) ill and cannot transmit the disease.

Photos: Return of the 'White Plague': Fears over the rise of 'incurable' TB

Drug-resistant TB – This rendering shows drug-resistant Mycobacterium tuberculosis bacteria, which cause TB. When people with lung TB cough, sneeze or spit, they propel TB bacteria into the air.
A third of the world's population has latent TB, which means they have been infected by TB bacteria but are not (yet) ill and cannot transmit the disease.

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Photos: Return of the 'White Plague': Fears over the rise of 'incurable' TB

Drug-resistant TB – TB drug resistance is the result of ineffective drug formulations or people failing to complete their course of antibiotics.

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More than 500,000 South Africans contract TB each year, including thousands of cases of extensively drug-resistant TB. Pictured, a TB patient in Alexandra township, near Johannesburg.

Photos: Return of the 'White Plague': Fears over the rise of 'incurable' TB

Drug-resistant TB – More than 500,000 South Africans contract TB each year, including thousands of cases of extensively drug-resistant TB. Pictured, a TB patient in Alexandra township, near Johannesburg.

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"The disease has reached a public health emergency in South Africa," says Keertan Dheda, professor of medicine at the University of Cape Town.

Photos: Return of the 'White Plague': Fears over the rise of 'incurable' TB

Drug-resistant TB – "The disease has reached a public health emergency in South Africa," says Keertan Dheda, professor of medicine at the University of Cape Town.

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