Fig. 1

Chord diagram of HPV type correlations, the fan width represents the number of people infected, and the chord width between the two fans represents the number of people infected with both types (A); The left Y-axis and bar chart represent the number of positive and negative number of population, and the right Y-axis and line chart represent the prevalence (B). Line chart of the infection rate over years, HR-HPV, high-risk human papillomavirus, LR-HPV, low-risk human papillomavirus (C). Seasonal line chart of prevalence, spring: Mar, Apr, May; summer: Jun, Jul, Aug; autumn: Sep, Oct, Nov; winter: Dec, Jan, Feb (D)