The information contained within this update
is obtained from data provided by Ministries of Health of Member States
and National Influenza Centers through reports sent to Pan American Health
Organization (PAHO) or updates on their web pages.
I- Evolution of the pandemic
In Canada and the United States, spread
of influenza continues to be widespread and trends of acute respiratory
disease continue to increase.
In the United States, in EW 41, outpatient
influenza-like-illness (ILI) activity continued to increase, remaining