Figure 6.12 Reported influenza morbidity in Iceland. (A) Monthly records for total reported influenza cases from January 1913 to December 1976. (B) Monthly record of the number of Icelandic medical districts reporting one or more cases of influenza, January 1915 to December 1976. (C) Map of boundaries of Icelandic medical districts for the year 1945. (D) Cumulative total of reported monthly influenza cases for each Icelandic medical district in the period January 1915 to December 1976. Circles are drawn proportional to the cumulative number of cases but note the special position of the capital city, Reykjavík.

Source: All influenza data based on Heilbrigðisskýrslur (Public Health in Iceland)