Phage typing is used for all except-
a. Typing entails using a test of some sort to distinguish different strains of a particular bacterial species from each other
b. Sometimes strains of a particular bacterial species are very much more pathogenic than other strains. In other species, different strains may be equally pathogenic. Whichever is the case, it is important that we know which strain is causing an outbreak of disease because this allows us to trace the source. By tracing the source of an outbreak we can prevent further infection.
c. Bacteriological typing methods include serotyping, biotyping, phage typing, plasmid profile analysis, RFLP.
d. Phage typing detects different susceptibilities to attack by certain bacteriophages.
e. Apart from the options a, c and d, mycobacteria and corynebacteria are also phage typed.