Adverse Reactions

According to CSA standards, hospitals are required to report adverse events following transfusion to Canadian Blood Services (CBS) if they are thought to be due to a deficiency of the product. There is also reporting of adverse events following transfusion either voluntarily through TTISS or as required by Health Canada.


To facilitate reporting of adverse transfusion events, CBS has prepared a guide which includes links where reporting forms may be found. This guide can be downloaded here:

A Guide to Reporting Adverse Transfusion Events


To share the adverse events information reported to CBS, reports summarising the information are prepared annually and made available on this website. These reports are meant to supplement rather than replace the official reporting that comes from the TTISS program. It should also be noted that adverse event reports received by CBS are often revised as additional information becomes available. As a result, the exact numbers reported for a given year may change slightly with subsequent postings as a result of the receipt of this revised information.

Summary of Adverse Reactions and Fatalities reported to CBS

2009-2015 Summary

Adverse Event Reports

2009 , 2010 , 2011 , 2012, 2013, 2014, 2015

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