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H1N1 Flu Virus

Ontario Influenza Bulletin - Key Facts

Note: The Influenza Bulletin provides information based on the surveillance period from October 17 to October 23, 2010. Case counts are submitted to the ministry by public health units every Tuesday

For the surveillance period of from October 17 to October 23, 2010 :

• Influenza activity in Ontario is slightly higher than in the previous reporting period (October 10 to October 16, 2010).
• Slightly fewer patients reporting influenza-like symptoms consulted sentinel physicians during this reporting period.
• The rate of influenza-like illness (ILI) in patients seen by sentinel physicians is similar to what is expected based on the average rate at this time of year for past seasons and within the expected range for October.
• One health unit reported localized influenza activity and five health units reported sporadic influenza activity. The remaining health units reported no influenza activity or did not report.

For additional information, please see the flu bulletin for this surveillance period.