TABLE 5.
Analysis of specimens Luminex xTAG GPP positive/bacterial culture negative for Campylobacter spp., Escherichia coli O157, Salmonella spp., and Shigella spp. on commercial and in-house PCR assays
| Bacteria with positive test result on GPP | No. of specimens | Commercial assay retest result | In-house PCR result |
|---|---|---|---|
| Campylobacter spp. | 2 | Negative | NAa |
| Escherichia coli O157 | 4 | Negative | Negative |
| Salmonella spp. | 9 | Negative | Negative |
| Shigella spp. | 2 | Positive | Positive |
| Shigella spp. | 1 | Negative | Negative |
a
NA, not applicable (our in-house assay did not include primers for Campylobacter spp.).