Affiliation: | (1) Department of Biochemistry, Microbiology and Immunology, University of Ottawa, 451 Smyth Road, Ottawa, Canada, K1H 8M5 e-mail: jdillon@uottawa.ca, Tel.: +1-613-5625459, Fax: +1-613-5625452, CA;(2) Department of Biology, University of Ottawa, Ottawa, Canada, K1N 6N5, CA;(3) Department of Microbiology, University of Guelph, Guelph, Canada, N1G 2W1, CA |