TABLE 4.
Gene profiles for the identification of S. Typhi and S. Paratyphi from other serovarsa
| Profile | Salmonella identification | ttr | sseJ | tviBb | srfJ | SPC0869 | SPA2308 | staG |
|---|---|---|---|---|---|---|---|---|
| 1 | S. Typhi | + | − | +/− | − | − | − | + |
| 2 | S. Paratyphi A | + | − | − | − | − | + | − |
| 3 | S. Paratyphi B | + | − | − | + | − | − | − |
| 4 | S. Paratyphi C | + | + | + | − | + | − | − |
| 5 | NTS serovarc | + | + | − | +/− | − | − | − |
| 6 | Non-Salmonella spp. | − | − | − | − | − | − | − |
a
+, present; −, absent.
b
tviB+ means that the strain is genotypically Vi positive.
c
A proportion of NTS serovars will be positive for the ttr gene and a combination of targets that do not match any of the TS profiles (Table S1).