Published online by Cambridge University Press: 15 May 2009
1. A technique for studying the behaviour of Salmonella in milk is described.
2. S. typhi, paratyphi B, dublin, cholerae-suis, typhi-murium, enteritidis and bovis-morbificans all multiplied readily even in absolutely fresh raw milk stored at 15°C., and in commercial grades of raw and of heat-treated milk rapid multiplication also occurred.
3. Strains of S. typhi recently isolated from man showed more rapid multiplication in milk than did stock laboratory cultures.
4. These Salmonella all survived at least 2 months when incorporated in various grades of salted and unsalted butter.