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Table 1 Species, patients’ age and site of infection of NTM isolated at the Clinical Mycobacteriology Laboratory of Pisa University Hospital during years 2004–2014

From: Increase in non-tuberculous mycobacteria isolated from humans in Tuscany, Italy, from 2004 to 2014

NTM species No. of isolates (% of total isolates) No. of isolates (% of species isolates)
Patient age range Site of isolation
1–10 11–20 21–30 31–40 41–50 51–60 61–70 71–80 >80 Respiratory tract Blood Lymph node Othera
M. avium 61 (41.5) 8 (13.1) 2 (3.3) 1 (1.6) 8 (13.1) 7 (11.5) 9 (14.8) 20 (32.8) 6 (9.8) 40 (65.6) 4 (6.6) 11 (18.0) 6 (9.8)
M. intracellulare 21 (14.3) 3 (14.3) 2 (9.5) 2 (9.5) 5 (23.8) 6 (28.6) 3 (14.3) 17 (81.0) 4 (19.0)
M. gordonae 17 (11.6) 3 (17.6) 4 (23.5) 2 (11.8) 3 (17.6) 4 (23.5) 1 (5.9) 14 (82.4) 3 (17.6)
M. xenopi 14 (9.5) 5 (35.7) 2 (14.3) 2 (14.3) 4 (28.6) 1 (7.1) 14 (100.0)
M. fortuitum 10 (6.8) 1 (10.0) 2 (20.0) 3 (30.0) 4 (40.0) 7 (70.0) 3 (30.0)
M. kansasii 7 (4.8) 1 (14.3) 1 (14.3) 4 (57.1) 1 (14.3) 7 (100.0)
M. celatum 3 (2.0) 1 (33.3) 1 (33.3) 1 (33.3) 2 (66.6) 1 (33.3)
M. abscessus 2 (1.4) 1 (50.0) 1 (50.0) 1 (50.0) 1 (50.0)
M. chelonae 2 (1.4) 1 (50.0) 1 (50.0) 2 (100.0)
M. marinum 2 (1.4) 2 (100.0) 2 (100.0)
M. lentiflavum 2 (1.4) 2 (100.0) 2 (100.0)
M. simiae 2 (1.4) 1 (50.0) 1 (50.0) 2 (100.0)
M. scrofulaceum 1 (0.7) –– 1 (100.0) 1 (100.0)
M. triplex 1 (0.7) 1 (100.0) 1 (100.0)
M. phocaicum 1 (0.7) 1 (100.0) 1 (100.0)
M. bolletii 1 (0.7) 1 (100.0) 1 (100.0)
Total 147 (100.0) 12 (8.2) 2 (1.4) 2 (1.4) 11 (7.5) 18 (12.2) 17 (11.6) 31 (21.1) 40 (27.2) 14 (9.5) 112 (76.2) 4 (2.7) 16 (10.9) 15 (10.2)
  1. ainclude isolates from urine, stool, skin, gastric lavage and other body fluids