Fig. 1From: Analysis of international traveler mobility patterns in Tokyo to identify geographic foci of dengue fever riskCountry-specific numbers of international travelers in Tokyo, August 2017. The y-axis of the bar plot is on a log10 scale. According to the Centers for Disease Control and Prevention definitions of areas with dengue transmission risk, all 51 countries under consideration were classified into three groups: “sporadic cases only” in white, “regional (localized) transmission” in gray, and “continuous transmission” in blackBack to article page