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. 2023 Feb 21;15(3):589. doi: 10.3390/v15030589

Figure 2.

Figure 2

African distribution of Anopheles and Aedes vectors and the alphaviruses ONNV and CHIKV. (A) Aedes mosquitoes were established in North Africa but are absent from other regions with Anopheles populations. Aedes and Anopheles vectors are generally sympatric in the Sub-Saharan region. (B) ONNV and CHIKV have been reported in most of Sub-Saharan Africa. ONNV reports are restricted to countries where CHIKV is also present, and countries such as South Africa and Chad have detected CHIKV cases, but Aedes vectors have not been detected in these regions. References of ONNV’s and CHIKV’s first detection and outbreak cases are cited in the text.