title: Investigation of the first cases of human-to-human infection with the new swine-origin influenza A (H1N1) virus in Canada.
abstract: The outbreak of human infection due to the novel swine-origin influenza A (H1N1) virus began in Mexico in March 2009. As of July 6, 2009, more than 94,000 laboratory-confirmed cases were reported in over 100 countries, including 7983 cases in Canada. In this report, we describe the epidemiologic and clinical characteristics of the first cluster of reported cases of human-to-human transmission of the new influenza virus in Canada.
authors.affiliation: Canadian Field Epidemiology Program, Public Health Agency of Canada, Ottawa, Ont.
authors.forename: Jennifer
authors.initials: J
authors.lastname: Cutler
authors.forename: Emily
authors.initials: E
authors.lastname: Schleihauf
authors.forename: Todd F
authors.initials: TF
authors.lastname: Hatchette
authors.forename: Bev
authors.initials: B
authors.lastname: Billard
authors.forename: Gaynor
authors.initials: G
authors.lastname: Watson-Creed
authors.forename: Ross
authors.initials: R
authors.lastname: Davidson
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Nathalie
authors.initials: N
authors.lastname: Bastien
authors.forename: Shelly
authors.initials: S
authors.lastname: Sarwal
mesh_terms: D000293:Adolescent; D000328:Adult; D002170:Canada / Q000453:epidemiology; D002648:Child; D016000:Cluster Analysis; D004196:Disease Outbreaks / Q000517:prevention & control / Q000706:statistics & numerical data*; D018562:Disease Transmission, Infectious / Q000517:prevention & control / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D017053:Infection Control / Q000379:methods; D053118:Influenza A Virus, H1N1 Subtype / Q000302:isolation & purification*; D007251:Influenza, Human / Q000175:diagnosis / Q000453:epidemiology* / Q000635:transmission / Q000821:virology*; D008297:Male; D008875:Middle Aged; D055815:Young Adult