Volume 23, Number 10—October 2017
Synopsis
Surveillance of Extrapulmonary Nontuberculous Mycobacteria Infections, Oregon, USA, 2007–2012
, Katrina Hedberg, Sean D. Schafer, and Kevin L. Winthrop
Table
Characteristics of 334 nontuberculous mycobacterium infections, Oregon, USA, 2007–2012*
| Category |
Infection site† | Total, N = 334 |
||||
|---|---|---|---|---|---|---|
| Skin/soft tissue, n = 197 |
Disseminated, n = 57 |
Lymph node, n = 28 |
Joint, n = 14 |
Other, n = 38 |
||
| Annual incidence/100,000 population |
0.9 |
0.2 |
0.1 |
0.1 |
0.2 |
1.5 |
| Patient demographics | ||||||
| Sex | ||||||
| F | 115 (58) | 19 (33) | 15 (54) | 7 (50) | 20 (52) | 176 (53) |
| M | 82 (42) | 38 (67) | 13 (46) | 7 (50) | 18 (48) | 158 (47) |
| Median age, y (range) | 51 (0.8–92) | 41 (1–82) | 44 (0.8–76) | 70 (39–88) | 61 (21–88) | 51 (0.8–92) |
| HIV positive |
8 (4) |
34 (60) |
5 (18) |
0 (0) |
3 (8) |
50 (15) |
| Mycobacterium species | ||||||
| Rapid-growing species | 85 (43.1) | 5 (8.8) | 2 (7.1) | 3 (21.4) | 13 (34.2) | 108 (32.3) |
| M. chelonae/abscessus complex | 40 (20.3) | 2 (3.5) | 1 (3.6) | 1 (7.1) | 8 (21.1) | 52 (15.6) |
| M. fortuitum complex | 28 (14.2) | 1 (1.8) | 1 (3.6) | 1 (7.1) | 1 (2.6) | 32 (9.6) |
| M. chelonae | 17 (8.6) | 2 (3.5) | 0 (0) | 1 (7.1) | 4 (10.5) | 24 (7.2) |
| Slow-growing species | ||||||
| M. avium/intracellulare complex | 70 (35.5) | 45 (78.9) | 23 (82.1) | 9 (64.3) | 20 (52.6) | 167 (50) |
| M. marinum | 20 (10.2) | 0 (0) | 0 (0) | 0 (0) | 1 (2.6) | 21 (6.3) |
| M. goodii | 5 (2.5) | 0 (0) | 1 (3.6) | 0 (0) | 0 (0) | 6 (1.8) |
| M. aubagnense | 1 (0.5) | 1 (1.8) | 0 (0) | 0 (0) | 1 (2.6) | 3 (0.9) |
| M. xenopi | 1 (0.5) | 0 (0) | 1 (3.6) | 0 (0) | 1 (2.6) | 3 (0.9) |
| M. alvei | 2 (1) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 2 (0.6) |
| M. neoaurum | 0 (0) | 2 (3.5) | 0 (0) | 0 (0) | 0 (0) | 2 (0.6) |
| Other species‡ | 13 (6.6) | 4 (7) | 1 (3.6) | 2 (14.3) | 2 (5.3) | 22 (6.6) |
*Values are no. (%) patients except as indicated. Total excludes 13 M. gordonae isolates: 6 skin/soft tissue, 1 disseminated, 1 lymph node, 5 other.
†Skin/soft tissue: wound, abscess, tissue, or exit catheter; disseminated: blood, bone marrow, cerebrospinal fluid, pericardial fluid, or peritoneal fluid; lymph node: lymph node or neck abscess; joint: synovial or joint fluid; other: urine, eye, sinus, or nasopharyngeal.
‡Other species were 8 unspeciated and 1 each of M. asiaticum, M. branderi, M. brisbanense, M. heckeshornense, M. immunogenum, M. interjectum, M. kansasii, M. lentiflavum, M. llaterense, M. mucogenicum/phocaicum, M. obuense, M. simiae, M. thermoresistible, and M. vaccae.