[1] Univ Laval, Hop Enfants Jesus, Ctr Hosp Affilie Univ Quebec, Dept Neurol Sci, Quebec City, PQ G1J 1Z4, Canada
[2] Univ Laval, Hop Enfants Jesus, Ctr Hosp Affilie Univ Quebec, Dept Microbiol Med & Malad Infect, Quebec City, PQ G1J 1Z4, Canada
[3] Univ Laval, Hop Enfants Jesus, Ctr Hosp Affilie Univ Quebec, Dept Ophthalmol, Quebec City, PQ G1J 1Z4, Canada
[4] Inst Natl Sante Publ Quebec, Lab Sante Publ, Quebec City, PQ, Canada