1. MSc, Stantec Consulting, 905 Waverley St., Winnipeg MB, Canada R3T 5P4.
2. PhD, P. Eng, Dept. of Civil Engineering, Univ. of Manitoba, 15 Gillson St., Winnipeg MB, Canada R3T 5V6 (corresponding author).
3. PhD, Dept. of Medical Microbiology, Univ. of Manitoba, 730 William Ave., Winnipeg MB, Canada R3E 0W3.
4. Dept. of Medical Microbiology, Univ. of Manitoba, 730 William Ave., Winnipeg MB, Canada R3E 0W3.