Microbiology Methods for ERP Review 3-2020

44

5 + + + + + + + + + + + + + - + - + - - - - + - + - - - - - - - - - - - - 6 + + + + + + + + + + + + - + - - + - + - - - - + - - - - - - - - - - - - 7 + + + + + + + + + - b + + - - + + - + - - + - - - - - - - - - - - - - - - 8 + + + + + + + + + + + + - - - - - - - + + - + - - - - - - - - - - - - - 9 + + + + + + + + + + + + + + + - + + - - - - - - - - - - - - - - - - - - 10 d - + + + + + + + + + - b + - - - - - - b - b - - b - - - - - - - - - - b - - - - -

1 d + + + + + + + + + + + + + - - - + + - - b - - - - - - - - - - - - - - - - 2 + + + + + + + + + + + + - - - b - + - + + + - - - - - - - - - - - - - - - 3 + + + + + + + + + + + + - - + + + - + - - - + - - - - - - - - - - - - - 4 + + + + + + + + + + + + - - - + - - + c + + + + + - - - - - - - - - - - -

11 + + + + + + + + + + + + + + - - - - - - - + - + - - - - - - - - - - - - 12 + + + + + + + + + + + + - - + - + + - + - + - + - - - - - - - - - - - - 13 + + + + + + + - b + + + + + + - - - b - - - + - - - - - - - - - - - - - - - MLG 4.10 Col a

1 d + + + + + + + + + + + + + + + + - + - + + - + + - - - - - - - - - - - - 2 + + + + + + + + + + + + - + + - + + - - + + + + - - - - - - - - - - - - 3 + + + + + + + + + + + + + - + - - - - - + + + + - - - - - - - - - - - - 4 + + + + + + + + + + + + + - - - + + - - - - - - - - - - - - - - - - - -

39 5 + + + + + + + + + + + + + - + - + + - - - - - + - - - - - - - - - - - - 6 + + + + + + + + + + + + - - - - + + + - - - - + - - - - - - - - - - - - 7 + + - - + - - + + + + + - - + - + - - - - - - - - - - - - - - - - - - -

8 + + + + + + + + + + + + + + + - - + + + - - - - - - - - - - - - - - - - 9 + + + + + + + + + + + + - - - - - + + + - - - + - - - - - - - - - - - - 10 d - - - - - - - + - - - + - - - - - - - - - - - - - - - - - + - - - - - - 11 + + + + + + + + - - + + - + - - - - - + + - - - - - - - - - - - - - - - 12 + + + + + + + + + + + + + - + - - + - + + + + + - - - - - - - - - - - - 13 + + + - + + + + + + + + - + - - - - - - + - - - - - - - - - - - - - - -

Table 1. Individual Collaborator Results for Raw Ground Beef (80% Lean) High Level Test Portions Low Level Test Portions Non-inoculated Test Portions 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 GENE-UP Salmonella w/ Alternative Confirmation Col a

a Col – Collaborator; += Salmonella was detected in samples; -= Salmonella was not detected in sample; b Sample was presumptive positive but confirmed negative indicating a false positive result; c Sample was presumptive negative but confirmed positive indicating a false negative result; d Laboratory data not included in statistical analysis

2

1