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Table 1 S. Enteritidis 147 and its SPI mutants grouped according to their ability to colonise the liver and spleen of one-day-old chickens

From: Virulence potential of five major pathogenicity islands (SPI-1 to SPI-5) of Salmonella enterica serovar Enteritidis for chickens

Group 1

Group 2

Group 3

virulent

avirulent

medium virulent

wt

ΔSPI1-5

ΔSPI1

ΔSPI3

SPI3o

ΔSPI2

ΔSPI4

SPI4o

SPI1o

ΔSPI5

SPI5o

SPI2o

  1. wt - wild-type S. Enteritidis 147; ΔSPI1-5: mutant from which all major 5 SPI have been removed; ΔSPI1, ΔSPI2, ΔSPI3, ΔSPI4, ΔSPI5: mutants from which the respective SPI has been removed; SPI1o, SPI2o, SPI3o, SPI4o, SPI5o: mutants with only the respective SPI retained