With the passage of time, more and more diseases are getting resistant to current drugs. Recently, a study published in the journal The Lancet, has revealed that tuberculosis is getting resistant to available treatments across the globe.

The study, which is named as the Preserving Effective TB Treatment Study (PETTS), has unveiled that tuberculosis is not only getting difficult to treat, but expense to treat the same has also been increasing.

The International Working Group on MDR tuberculosis carried out the study in association with health departments of different countries. Some of the countries, which helped in carrying out the study, were Estonia, Latvia, South Africa, South Korea and Philippines, among others.

Lead author of the study Tracy Dalton from the Centers for Disease Control shared the figure being revealed by the World Health Organization (WHO). He was of the view that there are 8.8 million people, who have been living with tuberculosis and 5% cases among them, are the ones, which are multidrug-resistant. In other words, tuberculosis has developed resistance to two to three types of drugs.

"The global emergency of extensively drug-resistant tuberculosis heralds the advent of widespread, virtually untreatable tuberculosis”, said Dalton. Efforts need to be made, so that things can be reversed.