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Table 3 Average MTC DNA concentration in excretion samples from wild ungulates with ONL, BAL and fecal samples tested.

From: Patterns of Mycobacterium tuberculosis-complex excretion and characterization of super-shedders in naturally-infected wild boar and red deer

Host species

Excretion route

Average MTC DNA concentration (CFU/g or mL)

No.

Super-shedders

No.

Standard shedders

Wild boar

Oronasal

11

1.5 × 103

20

182.2

Bronchial-alveolar

11

15.2

20

22.8

Fecal

11

5.9 × 105

20

0

Red deer

Oronasal

5

2.6 × 103

7

83.7

Bronchial-alveolar

5

3.8 × 103*

7

12.9

Fecal

5

9.8 × 104

7

0

  1. Average MTC DNA concentration by host species and excretion route, including ungulates with >103 CFU/g or mL in at least one sample (super shedders) or only those with <103 CFU/g or mL in all samples (standard shedders). Statistically significant differences between species are highlighted (Mann–Whitney U). MTC DNA concentrations were estimated based on the calibration line between log-transformed inoculated BCG concentrations (CFU/g or mL) and MPN concentration estimates (MPN/g or mL).
  2. * p = 0.05.