The province's chief medical officer says the number of cases of influenza tends to peak every three to four years.
Dr. Faith Stratton says the most recent peak was in 2009.
As well, she says flu cases showed up earlier than usual this year, and patients have been complaining of particularly severe symptoms.
Stratton says one of the strains showing up is H-3-N-2, or Influenza A, which is a more virulent form of the virus.
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