भुहुम देहा आफाद ( दाब्लिउ . एद्स . अ ) नि हिसाबै , फ्राय 2 बिलियन सुबुंफोरा - बुहुमनि सुबुंअनजिमानि थाम बाहागोनि से - थिउबारकुलसिस पेथजेनाव दिनथिजाबाय ।
According to the World Health Organization WHO nearly 2 billion people one third of the world's population have been exposed to the tuberculosis pathogen .