Table 5.
Comparison of serology and PCR-MS results for regulatory food samples
| Samplea | Mediumb | Serology result | PCR-MS resultsc,e | PCR-MS/PRLSWd |
|---|---|---|---|---|
| Anise seeds I | TSB | Montevideo | No ID | No ID |
| Anise seeds II | TSB | Montevideo | Montevideo (+3 others) (2 of 6) | No ID |
| Fennel seeds I | TSB | Emek | Poona (1 of 6) | No ID |
| Fennel seeds II | TSB | Emek | II/IIIa/Chester (1 of 6) | Poona/II/IIIa/Sandiego |
| Papaya I | LB | Duesseldorf | No ID | No ID |
| Papaya II | LB | Mbandaka | No ID | No ID |
| Papaya III | LB | Mbandaka | No ID | No ID |
| Papaya IV | LB | Untypeable C2 | No ID | No ID |
| Papaya V | LB | Typhimurium | No ID | No ID |
| Papaya VI | LB | Mbandaka | No ID | No ID |
| Papaya VII | LB | Meleagridis | No ID | No ID |
| Shrimp I | LB | Agona | No ID | No ID |
| Silverfish | LB | Fulica | No ID | No ID |
| Tuna I | LB | Weltevreden | No ID | No ID |
| Tuna II | LB | Monophasic C2 | No ID | No ID |
| Tilapia I | LB | Albany | No ID | No ID |
| Papaya V | RV/TT | Typhimurium | Typhimurium/Typhimurium 5- | Typhimurium/Typhimurium 5- |
| Papaya VI | RV/TT | Mbandaka | Senftenberg (4 of 6) | Mbandaka |
| Papaya VII | RV/TT | Meleagridis | Pullorum/Enteritidis | Meleagridis |
| Shrimp II | RV/TT | Weltevreden | Mbandaka/Virchow | Weltevreden/Virchow |
| Shrimp III | RV/TT | Weltevreden | Mbandaka/Virchow | Weltevreden/Virchow |
| Silverfish | RV/TT | Fulica | Salamae (5 of 6) | Salamae (5 of 6) |
| Tuna I | RV/TT | Weltevreden | No ID | No ID |
| Tuna II | RV/TT | Monophasic C2 | Hadar/Blockley | Hadar (+4 others) |
| Tilapia II | RV/TT | Tennessee | Agona/Lac - | Tennessee |
| Tilapia III | RV/TT | Enteritidis | Enteritidis (+3 others) | Enteritidis/Thompson |
a
Samples in gray shading were extracted from preenrichment media.
b
TSB, Trypticase soy broth; LB, lactose broth; RV/TT, Rappaport-Vassiliadis medium and tetrathionate medium.
c
Results refer to identifications (IDs) made from the database.
d
Results refer to identifications made by comparing the base counts for the samples to those for the S. enterica isolates studied in this work.
e
Number of amplicons out of six that match the listed serotype is shown.