Molecular typing of 964 specimens from patients in Ethiopia with lymph node or pulmonary tuberculosis showed a similar distribution of Mycobacterium tuberculosis strains between the 2 disease manifestations and a minimal role for M. bovis. We report a novel phylogenetic lineage of M. tuberculosis strongly associated with the Horn of Africa.
Keywords: Ethiopia; Mycobacterium bovis; Mycobacterium tuberculosis; TB lymphadenitis; Tuberculosis and other mycobacteria; bacteria; bovine; cervical lymph nodes; extrapulmonary tuberculosis; lineage; lymph nodes; pulmonary tuberculosis; tuberculosis; zoonoses; zoonotic transmission.