First case of Zika virus infection in a returning Canadian traveler.

A woman who recently traveled to Thailand came to a local emergency department with a fever and papular rash. She was tested for measles, malaria, and dengue. Positive finding for IgM antibody against dengue and a failure to seroconvert for IgG against dengue for multiple blood samples suggested an alternate flavivirus etiology.

Longitudinal study of influenza molecular viral shedding in Hutterite communities.

Background: The nature of influenza viral shedding during naturally acquired infection is not well understood.

Methods: A cohort study was conducted in Hutterite colonies in Alberta, Canada. Flocked nasal swabs were collected during 3 influenza seasons (2007-2008 to 2009-2010) from both symptomatic and asymptomatic individuals infected with influenza.