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Table 1 Lethality of the fliY- mutant and the wild-type strain in infected guinea pigs.

From: Inactivation of the fliY gene encoding a flagellar motor switch protein attenuates mobility and virulence of Leptospira interrogansstrain Lai

Strain Challenge dosage (×108 per animal) Animal (n) Dead/surviving (n/n) Death rate (%)
Wild-type Mutant 6 10 10/0 100
  6 10 0/10 0
  12 10 0/10 0
  30 10 0/10 0
  60 10 6/4 60