[1] McGill Univ, Ctr Hlth, Dept Med Microbiol, Div Infect Dis, Montreal, PQ, Canada
[2] Inst Natl Sante Publ Quebec, Lab Sante Publ Quebec, Ste Anne De Bellevue, PQ, Canada
[3] Hop Haut Richelieu, Dept Med Microbiol, St Jean, PQ, Canada
[4] Childrens & Womens Hlth Ctr British Columbia, Dept Pediat, Vancouver, BC, Canada
[5] Childrens & Womens Hlth Ctr British Columbia, Dept Pathol & Lab Med, Vancouver, BC, Canada
[6] Publ Hlth Agcy Canada, Natl Microbiol Lab, Winnipeg, MB R3E 3R2, Canada