Health Canada is hoping concerns that have resulted in the suspension of some flu vaccine will be quickly resolved.

Canada is following several European countries in suspending distribution of vaccine made by Novartis.

Tiny clumps of virus particles have been found in some batches of flu vaccines made at the Novartis production facility in Italy.

Health Canada is investigating and has told doctors and others who administer flu shots to hold off using the Novartis product for the time being.

Novartis says finding minute clumps of virus particles is not unusual -- adding there have been no signals of adverse events
associated with use of the vaccine.

Novartis makes only about 20 per cent of Canada's annual flu vaccine purchase.

GlaxoSmithKline makes the bulk of Canada's seasonal flu vaccine.