Discourses of HPV vaccination over time

This chapter describes the results of the Keyword Co-occurrence Analysis on the HPV vaccination Twitter corpus. Nine dimensions of keyword variation are presented, and each dimension is described in its own section. Each section provides the label we assigned to each pole of the dimension expressing these as a contrast. Then, we consider the keywords most associated with each pole of the dimension and illustrate how they are used by providing example tweets with high coordinates and contribution values for each pole of the dimensions from the corpus. After this, the time series plot of that dimension is presented, and the peaks and troughs are discussed with reference to the tweets most associated with those peaks and troughs linked with external events related to the HPV vaccine.