Roger Johnson

National Microbiology Laboratory at Guelph
Guelph, ON
Canada

Papers:
P3-217 Comparison of Two Methods for Enumeration of Total Fecal Coliforms and Generic Escherichia coli, and Their Ability to Predict Pathogen Occurrence in Irrigation Waters
T4-02 Comparison of Methods for the Detection and Isolation of Shiga Toxin-producing Escherichia coli in Meat Samples