Current incidence and residual risk of HIV, HBV and HCV at Canadian Blood Services

Authors


  • Financial support: Canadian Blood Services

Sheila F. O’Brien, National Epidemiology and Surveillance, Canadian Blood Services, 1800 Alta Vista Drive. Ottawa, ON K1G 4J5, Canada
E-mail: sheila.obrien@blood.ca

Abstract

Estimates of the viral residual risk should be updated to reflect current incidence of infection in blood donors. Incidence rates were estimated for allogeneic whole-blood donations made to Canadian Blood Services from 2006 to 2009 based on transmissible disease conversions of repeat donations within a 3-year period. Residual risk was estimated as the incidence multiplied by the window period. The residual risk of HIV was 1 per 8 million donations, HCV 1 per 6·7 million donations and HBV 1 per 1·7 million donations. The residual risk remains low and has decreased for HCV since our previous estimates due to reduced incidence.

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