Subdivision of common Salmonella serotypes: phage typing of S. virchow, S. manhattan, S. thompson, S. oranienburg and S. bareilly.

The phage typing system elaborated for Salmonella infantis proved suitable to subclassify 633 S. virchow, 206 S. manhattan, 103 S. thompson, 30 s. oranienburg and 58 S. barielly strains. The S. virchow strains belonged to phage type 213 in 79.6%, each of six phage types occurred more frequently than 1%, and 15 phage types less frequently than 1%. The S. manhattan strains belonged to three phage types (687, 247, 547) in 91.2% and nine other types were found. The most common phage types among the S. thompson strains were 243 and 247 (52.4 and 18.4%) and eleven other types were encountered. All S. oranienburg strains derived from an outbreak and belonged uniformly to phage type 111. S. barielly strains isolated from an other outbreak fell into phage type 683.