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      Importation of yellow fever into China: assessing travel patterns.

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          Abstract

          Rapid increase in trade and a growing air passenger market encourages high travel volume between the regions associated with increasing risks of such importations including China. Eleven Chinese workers infected during the 2016 yellow fever (YF) outbreak in Angola imported YF into China highlighting the potential for spread into Asia. Using outbound and inbound travel data, we assessed travel patterns from and to YF endemic countries in relation to China. Among YF endemic countries, Angola has the second highest number of travellers into China and also receives the second highest number of Chinese visitors. We estimated that China needs around half a million YF vaccine doses to cover their population travelling to YF endemic countries. The recent importation cases into China also unmasked the low YF vaccination coverage among Chinese travellers and workers to Angola, indicating the need to ensure better adherence to the International Health Regulations.

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          Author and article information

          Journal
          J Travel Med
          Journal of travel medicine
          Oxford University Press (OUP)
          1708-8305
          1195-1982
          Jul 01 2017
          : 24
          : 4
          Affiliations
          [1 ] Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.
          [2 ] Institute of Public Health, University of Heidelberg, Germany.
          [3 ] Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, UK.
          Article
          3095983
          10.1093/jtm/tax008
          28426111

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