%0 Journal Article %A Smith, H. Williams %T The Typing of Salmonella dublin by Means of Bacteriophage %D 1951 %J Microbiology, %V 5 %N 5 %P 919-925 %@ 1465-2080 %R https://doi.org/10.1099/00221287-5-5-919 %I Microbiology Society, %X Summary: By the use of six phages, 294 (94%) of 306 strains of Salmonella dublin were classified into eleven types. The remaining twelve strains were insusceptible to all phages. Unfortunately, for the purposes of distinguishing strains of epidemiological interest, 66ยท9% of the strains belonged to the same type. Acquired phage resistance was responsible for many of the strains being regarded as different phage types. The phages were also active on S. rostock, S. gallinarum and on a small proportion of S. pullorum strains tested. They were not active on S. enteritidis. Three phages possessed a different range of lytic activity despite the fact that Bail's cross-resistance tests suggested that they were identical. The ability to type a species of Salmonella satisfactorily by means of anti-O phages appears to depend mainly on a large proportion of the strains having acquired resistance to different phages. %U https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-5-5-919