Figure 1From: Admission to hospital for pneumonia and influenza attributable to 2009 pandemic A/H1N1 Influenza in First Nations communities in three provinces of Canada Weekly hospitalizations rates for pneumonia and influenza in Ontario. Ontario – standardized rates per 100,000 population per week, April 2004-April 2012. Vertical bars represent waves 1 and 2 of H1N1 and corresponding control periods in earlier years.Back to article page