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    © 2020 The Authors. Published by Elsevier Ltd on behalf of International Society for Infectious Diseases. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). International Journal of Infectious Diseases 95 (2020 ) 74–83 Contents lists available at Science Direct International Journal of Infectious Diseases journal homepage: www.elsevier.com/locate/ijid
    Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/