Figure 2: The time course of the pandemic and the dotted line marks the start of vaccination. A: Patients consulting the emergency clinic with influenza-like-illness. B: The number of patients admitted with suspected H1N1pdm09 to HUH (dark grey bars) and patients included in the study (light grey bars). There are more patients inc than admitted in week 34 and 43, due to patients being recruited from other departments or delayed inclusion. C: The number of patients in at risk groups immunized in Bergen. HCWs resident in Bergen are included in the numbers and the figure represents only people < 65 years of age. Light grey bars are the cumulative number of vaccinations; dark grey bars are the number of new vaccinations each week. D: The number of health care workers immunized at HUH