Phage carriage in 91 <i>C. difficile</i> 027 isolates in relation to their different pulsovar types.

*, Phage tail-like particles. Prophage carriage among the 91 C. difficile 027 induced using mitomycin C or norfloxacin was also correlated to their pulsovar types. Pulsovar types I and II yielded defective myoviruses with one exception in Pulsovar I (isolate 71L) which yielded only phage tail-like particles (PT-LPs). Pulsovar type III yielded siphoviruses. Pulsovar types IV and V yielded phage tail-like particles with ten exceptions in Pulsovar type IV and one in Pulsovar type V.