Table 2.

Mutants showing complete absence exclusively at the systemic sites of all three infected sheep

Mutant	Gene	Pathogenicity associated studies
Apo7	MAG1890	45
6-9-2	MAG0360_oppC	29-34
81-1	MAG0370_oppB
6-29	MAG0940_pdhB	19, 40-44
9-40	MAG2320_gtsB	28, 36-37
7 + 1-3	MAG3650
23	MAG5520_aminopeptidase	44