In January 2015, British Columbia, Canada, reported avian influenza A(H7N9) virus infection in 2 travelers returning from China who sought outpatient care for typical influenza-like illness. There was no further spread, but serosurvey findings showed broad population susceptibility to H7N9 virus. Travel history and timely notification are critical to emerging pathogen detection and response.
Keywords: Canada; Influenza A Virus; avian influenza; epidemiology; hemagglutination inhibition tests; humans; influenza; influenza A(H7N9); microneutralization assay; serosurvey; subtype H7N9; travelers; virologic features; viruses.