Figure 1.
Distribution of KD time series across the globe.
Colors indicate number of cases reported in the entire time series from each location.
Figure 2.
Original time series (top), normalized time series (middle), and spectral analysis (bottom) for San Diego and Singapore.
90th, 95th and 99th percentile significance levels shown by green, red and purple lines in bottom frame.
Figure 3.
Months of maximum and minimum KD case numbers for each time series.
The normalized amplitude of the seasonal difference (maximum case numbers minus minimum case numbers) is indicated by the size of the dot. Month of maximum case numbers (upper map) and month of minimum case numbers (lower map) is indicated by the color of the dot.
Figure 4.
Average of the ratio of normalized monthly mean KD cases to overall number of cases per month over a) Northern Hemisphere extra-tropics, b) Tropics, c) Southern Hemisphere extra-tropics.