TABLE 3.

Results of PCR experimentationa

Yr of isolation (no. of strains)Identification of (no. of strains):PVL-carrying phage type (no. of strains)
Two kinds of phages by:Gene lineage of lukS-PV to tail gene by:Phage-specific modules related to lysogeny and recombination by PCR-5, -6, and -7
PCR-1 (icosahedrally shaped head)PCR-2 (elongated head)PCR-3 (tail gene common to φ108PVL and φPVL)PCR-4 (tail gene common to φSa2mw, φSLT, and φSa2958)
1979-1985 (53)+ (39)+ (39)+ (35)NDφ108PVL (33)φ108PVL type (33)
NT (2)Icosahedral-head type (2)
− (4)NDφ108PVL (4)φ108PVL-like type (4)
− (14)+ (14)ND+ (1)φSa 2958 (1)φSa2958 type (1)
− (13)φSa 2958 (13)φSa2958-like phage of unknown type (13)
2000s (12)− (12)+ (11)ND+ (10)φSa 2958 (2)φSa2958 type (2)
NT (8)Elongated-head type (8)
− (1)φSa 2958 (1)φSa2958-like phage of unknown type (1)
− (1)ND− (1)φSa 2958 (1)NT (1)
  • a ND, not determined; NT, nontypeable.