subspecies massiliense (M. massiliense) associated with high prevalence in cystic fibrosis
(CF) patients, pulmonary outbreaks in the United States (US) and United Kingdom (UK), and
a Brazilian epidemic of skin infections. The prevalence of Clone 1 in non-CF patients in the
US and the relationship of sporadic US isolates to outbreak clones are not known. We
surveyed a reference US Mycobacteria Laboratory and a US biorepository of CF-associated …