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Positivity to different bacteria in foundress queens (pool) and workers (pool) of V. orientalis trapped in Trieste during the spring (foundress queens) and summer (workers) 2022.
| BACTERIOLOGICAL EXAMINATION | Queens (Spring) | Workers (Summer) |
|---|---|---|
| Salmonella spp. | negative | negative |
| Listeria spp. | negative | negative |
| Enterococcus fecalis | positive score 2.24 | positive score 1.82 |
| Lactococcus garvieae | positive score 1.87 | negative |
| Serratia marcescens | negative | positive score 2.02 |
