 He was able to isolate only the two organisms - Salmonella Typhi Murium and Salmonella Cholera Suis.This contrasted with overseas results where many types of Salmonella had been found.In the 1950s, Josland prepared killed vaccines from Salmonella Typhi Murium and Salmonella Cholera Suis for use in pigs and sheep, respectively, but trial results were not encouraging.