Seasonal influenza vaccine and increased risk of pandemic A/H1N1‐related illness: first detection of the association in British Columbia, Canada.

ABSTRACT:

Background

In April 2009, an elementary school outbreak of pandemic H1N1 (pH1N1) influenza was reported in a community in northern British Columbia, Canada--an area that includes both non-Aboriginal and Aboriginal residents living on or off a reserve. During the outbreak investigation, we explored the relationship between prior receipt of trivalent inactivated influenza vaccine (TIV) and pH1N1-related illness.

Methods

A telephone survey was conducted from 15 May through 5 June 2009 among households of children attending any school in the affected community. Members of participating households where influenza-like illness (ILI) was described were then invited to submit blood samples for confirmation of pH1N1 infection by hemagglutination inhibition and microneutralization ass

SUBMITTER: Janjua NZ 

PROVIDER: S-EPMC7107856 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature