Fig 5. Similar bacterial loads in the liver of chick embryos inoculated with S. Typhimurium D23580 and 4/74.

Viable counts (CFU/g) of S. Typhimurium 4/74 and D23580 in liver at 16 hours post-infection with 10² CFU bacteria. Counts are shown for individual embryos with the bar representing the median value. Each isolate was tested in sixty embryos. Statistical comparison was made using a t-test. NS: not significant, P > 0.05.