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) | ND | φ108PVL (33) | φ108PVL type (33) |
| NT (2) | Icosahedral-head type (2) | |||||
| − (4) | ND | φ108PVL (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.