Mycobacteria 13 July 2023 Mycobacteria are a group of bacteria that can cause infections in humans. In the nail industry, mycobacteria can be a concern if proper sanitation and disinfection protocols are not followed, as they can potentially cause skin or nail infections. Related Articles: Glossary: Mycobacterium fortuitumCosmetic Pedicures: Why Skipping the Shave Matters