Table 1.
Bacterial strains used in this study, and effect of B1 phage obtained by spot testing. Results are the mean of three different experiments. +: clear lysis, −: no effect, H: turbid ring around lysis (halo), H: turbid spot without lysis. The phage efficiency was classified as highly productive (efficiency of plating (EOP) ≥ 0.5), moderately productive (0.1 ≤ EOP < 0.5), low productive (0.001 < EOP < 0.1), or inefficient (EOP ≤ 0.001).
| K. pneumoniae Strain/Isolate, Reference/Source | Serotype | Phage B1 | |
|---|---|---|---|
| Visible Effect | EOP | ||
| 52145 [51] | O1:K2 | +H | High |
| 52145-ΔwcaK2 [52] | O1:K– | - | Inefficient |
| 52145-ΔwaaL [53] | O–:K2 | +H | High |
| 52145-ΔwcaK2ΔwaaL [2] | O–:K– | + | Low |
| NTUH-K2044 [54] | K1 | - | Inefficient |
| CIP 52.145 | K2 | +H | High |
| CIP 80.51 | K3 | - | Inefficient |
| ATCC 700603 [55] | K6 | - | Inefficient |
| CIP 52.207 | K9 | - | Inefficient |
| CIP 52.215 | K11:O3 | - | Inefficient |
| CIP 52.216 | K12:O1 | - | Inefficient |
| CIP 52.217 | K13 | H | Inefficient |
| CIP 52.221 | K17 | - | Inefficient |
| CIP 52.223 | K19 | - | Inefficient |
| CIP 52.224 | K20 | - | Inefficient |
| CIP 52.225 | K21 | - | Inefficient |
| 53/3 [30] | K24 | - | Inefficient |
| CIP 52.229 | K24 | - | Inefficient |
| CIP 52.232 | K27:O2 | - | Inefficient |
| CIP 52.235 | K30:O1 | - | Inefficient |
| CIP 53.8 | K33:O3 | - | Inefficient |
| CIP 53.23 | K47:O1 | - | Inefficient |
| MGH 78578 [55] | K52 | - | Inefficient |
| CIP 80.47 | K64 | - | Inefficient |