This book covers all the aspects related to the laboratory diagnosis of Mycobacterium. Laboratory diagnosis includes microscopic to advance molecular diagnosis. Moreover, it deals with the methods used to detect antimycobacterial susceptibility tests and drug resistance. Chapters cover most potential methods and techniques from traditional to advanced future diagnostics for identifying tuberculosis, NTM, and latent TB infections. Also discussed the challenges and opportunities in the diagnostic science of infectious disease.  This book offers assistance to students, postgraduate medical students, researchers, medical practitioners, postdoctoral fellows, microbiologists, nurses, and public health officers working in tuberculosis control programs to understand various modalities for diagnosis and drug-resistance tuberculosis.