Volume 23, Number 3—March 2017
Research
Mycobacterium tuberculosis Transmission among Elderly Persons, Yamagata Prefecture, Japan, 2009–2015
Junji Seto
, Takayuki Wada, Yu Suzuki, Tatsuya Ikeda, Katsumi Mizuta, Taro Yamamoto, and Tadayuki Ahiko
, Takayuki Wada, Yu Suzuki, Tatsuya Ikeda, Katsumi Mizuta, Taro Yamamoto, and Tadayuki Ahiko
Table 3
Lineages of 494 Mycobacterium tuberculosis strains by patient age group in Yamagata Prefecture, Japan, 2009–2015
| Patient age group, y | No. (%) patients | M. tuberculosis lineage, no. (%) |
|||||
|---|---|---|---|---|---|---|---|
| Non-Beijing | Ancient Beijing |
Modern Beijing | |||||
| ST11/26 | STK | ST3 | ST25/19 | ||||
| <39 | 61 (100) | 16 (26.2) | 13 (21.3)* | 4 (6.6) | 2 (3.3) | 3 (4.9) | 23 (37.7)* |
| 40–59 | 46 (100) | 12 (26.1) | 4 (8.7) | 2 (4.3) | 1 (2.2) | 10 (21.7) | 17 (37.0)* |
| 60–79 | 131 (100) | 37 (28.2) | 6 (4.6) | 19 (14.5) | 24 (18.3) | 30 (22.9)† | 15 (11.5) |
| >80 | 256 (100) | 75 (29.3) | 10 (3.9) | 57 (22.3)* | 56 (21.9)* | 38 (14.8) | 20 (7.8) |
*Significantly higher proportion by residual analysis (p<0.01).
†Significantly higher proportion by residual analysis (p<0.05).
Page created: February 17, 2017
Page updated: February 17, 2017
Page reviewed: February 17, 2017
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.