Figure 7

Temperature, precipitation and number of cases for locations with weather stations. The diagrams show weekly z-score values ((observation-mean value)/standard deviation) for mean temperature (red graph) and number of Asian Influenza cases (green graph) during 1957–1958. The time series starts with week 5726 (week 1 in the diagrams) and ends with week 5805 (week 31 in the diagrams).