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To develop monthly risk maps for mosquito-transmitted Zika virus in Africa and the Asia-Pacific region, investigators combined population density analysis, modeling of mosquito distribution and vector competence, data from the International Air Transport Association, and climate condition data. They looked at flows of airline passengers to Africa and the Asia-Pacific region from areas in the Americas that are suitable for year-round transmission of Zika virus.
The authors found that an estimated 2.6 billion people in Africa and the Asia-Pacific region live in areas with conditions suitable for local vector-borne transmission. Countries that have competent mosquito vectors and climatic conditions that would support local transmission, coupled…