Table 1.
Plaque-forming assay of O-antigen–specific bacteriophages Det7, P22, and 9NA
| Strain | Serogroup | Myovirus Det7a | Podovirus P22a | Siphovirus 9NAa |
|---|---|---|---|---|
| S. Typhimurium (DB7136) | B | +++ | +++ | +++ |
| S. Heidelberg O4 (13-00586) | ++ | − | + | |
| S. Typhimurium O4 (13-01225) | ++ | − | − | |
| S. Typhimurium O4,5 (06-01900) | ++ | ++ | − | |
| S. Enteritidis O9 | D1 | +++ | +++ | + |
| S. Anatum O3,10 (13-00188) | E | ++ | − | − |
| S. Typhimurium ΔWaaL (DB7155) | None | − | − | − |
| S. Typhimurium ΔWaaJ (DB7155) | − | − | − | |
| S. Typhimurium ΔWaaKL (DB7155) | − | − | − | |
| S. Typhimurium ΔLPS(DB7155) | − | − | − |
a Infectivity measured according to number of plaque-forming units. +++, 5 × 1011 to 5 × 1012; ++, 1 × 1010 to 4.9 × 1011; +, ≤1 × 1010; −, not infectious.