TABLE 2.

Aerosol experiments with log-phase or frozen-thawed M. tuberculosis Erdman

Expt no.TypeNo. of rabbitsAvg no. of inhaled bacilli (log10 inhaled)Mean no. of tubercles ± SEMean tubercle diameter (mm) ± SENo. of bacilli inhaled/tubercleResponse to old tuberculin (mm3)
8bFrozen61,231,670 (6.09)353 ± 601.74 ± 0.113,489641 ± 180
11Frozen6113,830 (5.06)135 ± 232.77 ± 0.28843740 ± 180
7Log6309,330 (5.49)374 ± 971.93 ± 0.13827695 ± 222
8a and 9Log1263,670 (4.80)152 ± 291.51 ± 0.084191,133 ± 180