26.11.2018
26.11.2018:
Mycobacteria are aerobic, non-spore-forming rod bacteria, are non-motile and acid-fast, i.e. they cannot be decolourised by acid-alcohol in special staining. Their growth rate is generally low, but varies. This forms the basis for their subdivision into fast- and slow-growing species, defined as growth in a solid medium before or after seven days, when spread from a liquid bacterial culture. Non-tuberculous mycobacteria (NTM) have varying pathogenicity and are normally found in the environment, e.g. in soil and water, but can cause infections in both humans and animals. The bacteria may also...