In 2007, Texas governor Rick Perry issued an executive order requiring that all females entering sixth grade be vaccinated against the human papillomavirus (HPV), igniting national debate that echoed arguments heard across the globe over public policy, sexual health, and the politics of vaccination. Three Shots at Prevention explores the contentious disputes surrounding the controversial vaccine intended to protect against HPV, the most common sexually transmitted infection.

When the HPV vaccine first came to the market in 2006, religious conservatives decried the...