Supplementary Table 1 Spectrum of mycobacterial species within isolates obtained from environmental samples

Reservoir (No. of isolates) / I (6) / II (11) / III (5) / IV (20) / Total (42) / %
Location / DS / WT / HS / DS / WT / HS / DS / WT / HS / DS / WT / HS / DS / WT / HS
No. of samples examined / 8 / 8 / 8 / 14 / 6 / 6 / 24 / 9 / 5 / 6 / 11 / 19 / 52 / 34 / 38
No. of samples positive / 5 / 1 / - / 2 / 5 / 4 / - / 2 / 3 / 6 / 8 / 6 / 13 / 16 / 13
M.absecessus / M.chelonae a / - / - / - / - / - / - / - / - / - / - / - / 2 / - / - / 2 / 4.8
M.avium subsp.avium / - / - / - / - / - / - / - / - / - / 3 / - / - / 3 / - / - / 7.1
M.hiberniae / - / - / - / - / - / - / - / 1 / - / - / - / - / - / 1 / - / 2.4
M.fortuitum / 1 / - / - / - / - / - / - / - / - / - / 1 / - / 1 / 1 / - / 4.8
M.gordonae / - / 1 / - / - / - / 4 / - / - / - / 1 / - / 1 / 1 / 1 / 5 / 16.7
M.lentiflavum / - / - / - / - / 2 / - / - / 1 / - / - / 1 / - / - / 4 / - / 9.5
M.llatzerense / - / - / - / - / - / - / - / - / 1 / - / - / - / - / - / 1 / 2.4
M.montefiorense / 1 / - / - / 1 / - / - / - / - / 1 / - / - / - / 2 / - / 1 / 7.1
M.nonchromogenicum / - / - / - / - / 1 / - / - / - / - / - / 2 / - / - / 3 / - / 7.1
M.peregrinum / M.septicum a / - / - / - / - / - / - / - / - / - / - / 1 / 1 / - / 1 / 1 / 4.8
M.triplex / 2 / - / - / - / 2 / - / - / - / - / 2 / - / - / 4 / 2 / - / 14.3
M.species b / 1 / - / - / 1 / - / - / - / - / 1 / - / 3 / 2 / 2 / 3 / 3 / 19.0

DS Dam sediment

WT Water treatment sludge

HS household sediment from tap water supplies

- Negative result

a Not distinguished in this study due to identical sequence of the analyzed 16S rRNA gene

b Identified only to the species level due to the low sequence homology with database entries