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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Health Informatics J. 2017 Nov 17;25(3):1116–1132. doi: 10.1177/1460458217740723

Figure 4.

Figure 4

(a) Topic wheel for tweets expressing vaccine hesitancy during the non-outbreak period 14 September 2014 to 15 November 2014, derived from Crimson Hexagon. (b) Topic wheel for tweets in our corpus not expressing vaccine hesitancy during the non-outbreak period 14 September 2014 to 14 November 2014, derived from Crimson Hexagon. (c) Topic wheel for tweets expressing vaccine hesitancy during the outbreak period 30 November 2014 to 30 May 2015, derived from Crimson Hexagon. (d) Topic wheel for tweets in our corpus not expressing vaccine hesitancy during the outbreak period 30 November 2014–30 May 2015, derived from Crimson Hexagon. (*redacted specific famous celebrity’s name).