Bubble Plot from Scientific Research

Number of cases of H influenzae by country are shown, displaying only those countries where at least 100 cases in total had been reported across all four study years. Circles represent the total number of cases each year, and lines indicate the increasing or decreasing trend year by year, with all serotypes depicted by the dashed line and H influenzae serotype b (Hib) depicted by the solid line. ND=not determined.

DOI