December 15, 2010 Acknowledgements Alberta Health and Wellness and Alberta Health Services wishes to acknowledge and thank the individuals, groups and data partners who contributed to the success of the development of this report. [...] With the first and second wave of pH1N1 complete, it is possible to do a quick assessment of the magnitude of the threat it represented to Albertans and the success of the health care system response. [...] The first wave peaked the week of June 14 and the second wave the week of October 25. [...] The pH1N1 virus was the dominant influenza strain across the globe from the beginning of July and continued to be dominant at the end of the second wave. [...] If the pandemic had been of severity of Category 2 and an infection rate of 30%, the projected number of deaths in Alberta would be 5,500 and that would have swamped the acute care system.