Effect of Irradiation and Nanofiltration on Reproducibility of OOS Results
| Sample | Treatment | Result |
|---|---|---|
| Bioreactor sample previously testing OOS | Untreated | Negative |
| Gamma-irradiated | Positive* | |
| Nanofiltered | Negative | |
| Medium sample previously testing OOS | Untreated | Negative |
| Gamma-irradiated | Negative | |
| Nanofiltered | Negative |
↵* Atypical structures (foci artifact) observed.