The virulence gene profile had no effect/impact on the HPP D10, which ranged from 0.89 to 25.7 min, with a mean of 9.74 min in this study.
The high pressure resistance of some STEC isolates, which are involved in human illness, may require adjustment of HPP processing parameters for ground beef in order to reduce the risk of foodborne illness to consumers.
This may be especially true for isolates containing stx2 and eae, which are more closely associated with human illness.