Rapidly growing Mycobacteria

Mycobacteria that form colonies clearly visible to the naked eye in less than 7 days on subculture are termed rapid growers.

Nonchromogenic

 * Mycobacterium abcessus
 * Mycobacterium agri
 * Mycobacterium alvei
 * Mycobacterium arupense
 * Mycobacterium fortuitum

Scotochromogenic
Yellow-Orange
 * Mycobacterium aichiense