<prompt> Phage typing is useful as an epidemiological tool in all, except -SalmonellaStaph aureusV. CholeraeShigella dysenteriae  <response>: Phages that lyse all the members of genus salmonella species ,Bacillus anthracis and subspecies classical vibrio cholerae. The most impoant application of phage typing is for intraspecies typing of bacteria as in the ohage typing of S.typhi and staphylococci. REF:ANANTHANARAYAN AND PANIKERS TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:459 