Fig. 6

The most frequent MeSHs assigned to the Ebola-related articles before and during the Ebola epidemic start-time.

We searched each subheading shown in the figure as the MeSH subheading and the term “Ebola” in the “title/abstract” of the articles indexed in 2013 and 2014. The figure shows the number of records, and the lines connect the same subheadings in these two years. The terms “organization,” “numerical data,” and “prevention” stand for organization & administration, statistics & numerical data, and prevention & control, respectively