Provincial Health Services Authority (PHSA) improves the health of British Columbians by seeking province-wide solutions to specialized health care needs in collaboration with BC health authorities and other partners.
Isolation of influenza virus from an appropriate clinical specimen;OR
Demonstration of influenza virus antigen in an appropriate clinical specimen;OR
Significant (e.g. fourfold or greater) rise in Influenza antibody titre between acute and convalescent sera.
BC Centre for Disease Control. All Rights Reserved.