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. 2022 Nov 17;24(12):217–228. doi: 10.1007/s11908-022-00789-y

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Fig. 1 — Countries and territories where local transmission of chikungunya in humans has occurred. a Dark green areas indicate reported local transmission as of 2004, when an outbreak in Lamu Island, Kenya subsequently spread to different regions (sources: data from Bettis et al. [18••], Weaver and Lecuit [19••], and Weaver [20]). b Dark green areas show ongoing or previous local transmission of chikungunya as of March 2022, demonstrating spread to the Americas over the past decade (source: CDC [21])