Figure 1From: Upscaling human papillomavirus vaccination in high-income countries: impact assessment based on transmission modelTiming of the HPV vaccination programme as assumed for modelling purposes. Legend: Baseline 11-year-old girl vaccination started in 2008; new options (catch-up of 17-to-24-year-old women; increased 11-year-old girls’ coverage; 11-year-old boys’ vaccination) started in year 2013. HPV: human papillomavirus.Back to article page