TABLE 4.
PCR results for the detection of six genomic fragments in different Salmonella serovar Typhimurium isolates
| Phage typea (no. of isolates) | irsA | Presence or absenceb of:
|
||||
|---|---|---|---|---|---|---|
| HldD homo- logue | Frag- ment 84 | Frag- ment 168 | Frag- ment 180 | Gifsy-2 control | ||
| DT104 | ||||||
| DT104 (6) | + | + | + | + | + | + |
| PT506 (11)c | + | + | + | + | + | + |
| Non-DT104 | ||||||
| ARS (2) | − | − | − | − | − | + |
| LT2 (2) | − | − | − | − | − | + |
| ND (4) | − | − | − | − | − | + |
| OS (4) | − | − | − | − | − | + |
| PT3 (2) | − | − | − | − | − | + |
| PT10 | − | − | − | − | − | + |
| PT296 (2) | − | − | − | − | − | + |
| PT301 | − | − | − | − | − | + |
| PT350 (2) | − | − | − | − | − | + |
| PT353 | − | − | − | − | − | + |
| PT401 (4) | − | − | − | − | − | + |
| PT507 | − | − | − | − | − | + |
| PT510 | − | − | − | − | − | + |
a
PT, phage types according to the Dutch phage-typing system. ND, not determined.
b
+, PCR product present; −, PCR product absent.
c
PT506 is typed as phage type DT104 in the English phage-typing system.