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Volume 32, Number 3—March 2026

Research Letter

Mycobacterium riyadhense Pulmonary Disease after Relocation from Saudi Arabia, Japan

Takuya Ozawa, Takeshi Komine, Sohei Nakayama, Yusuke Suzuki, Naoki Hasegawa, Koichi Fukunaga, Ho Namkoong, Hanako Fukano, and Takanori AsakuraComments to Author 
Author affiliation: Keio University School of Medicine, Tokyo, Japan (T. Ozawa, N. Hasegawa, K. Fukunaga, H. Namkoong, T. Asakura); Japan Institute for Health Security, Tokyo (T. Komine, H. Fukano); Kitasato University Kitasato Institute Hospital, Tokyo (S. Nakayama, Y. Suzuki, T. Asakura); Kitasato University School of Pharmacy, Tokyo (Y. Suzuki, T. Asakura)

Main Article

Figure 2

Midpoint-rooted maximum-likelihood tree based on 4,753 core genes of Mycobacterium riyadhense isolates from study of Mycobacterium riyadhense pulmonary disease after relocation from Saudi Arabia to Japan. Strains 484719 and 537489 (bold), obtained from clinical specimens in this study, were more closely related to strains MR-193 and DSM 45176 from Saudi Arabia. Yellow circles indicate ultrafast bootstrap values of 100%. Numbers at right indicate the number of coding sequences detected. Scale bar represents 0.001 substitutions per site.

Figure 2. Midpoint-rooted maximum-likelihood tree based on 4,753 core genes of Mycobacterium riyadhense isolates from study of Mycobacterium riyadhense pulmonary disease after relocation from Saudi Arabia to Japan. Strains 484719 and 537489 (bold), obtained from clinical specimens in this study, were more closely related to strains MR-193 and DSM 45176 from Saudi Arabia. Yellow circles indicate ultrafast bootstrap values of 100%. Numbers at right indicate the number of coding sequences detected. Scale bar represents 0.001 substitutions per site.

Main Article

Page created: February 20, 2026
Page updated: March 20, 2026
Page reviewed: March 20, 2026
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