Mycobacterium abscessus subsp. abscessus strain 42

Mycobacterium abscessus subsp. abscessus strain 42 is a rod-shaped bacterium characterized by the presence of flagella and a single replicon. This species primarily inhabits chloraminated water, which may play a role in its ecological distribution and potential pathogenicity. It has a wide host range, affecting various organisms including Homo sapiens, Metazoa, Aves, Phocidae, Rodentia, and Panthera leo. This strain is associated with several health conditions in humans, notably including endocarditis, peritonitis, and a range of pulmonary diseases such as chronic pulmonary infections, lung infections, and non-cavitary pneumonia. It is also implicated in conditions like cervical lymphadenitis and skin infections, as well as peritoneal dialysis-associated peritonitis. The bacterium can cause both localized and disseminated infections, highlighting its pathogenic potential in both human and zoonotic contexts. The diversity of health effects linked to Mycobacterium abscessus subsp. abscessus strain 42 underscores its significance as an opportunistic pathogen, particularly in immunocompromised individuals. Its capacity to thrive in chloraminated water suggests that environmental exposure may be a critical factor in the transmission of this pathogen, raising concerns about water quality and public health. Understanding the ecological niche of this bacterium may provide insights into its pathogenic mechanisms and inform strategies for managing infections it causes.