公共卫生：Cross-protection and type-replacement over the 17 years after human papillomavirus vaccine introduction in young women.

原文摘录：BACKGROUND: The study aim was to examine trends in non-4-valent and non-9-valent vaccine-type HPV detection over the first 17 years after U.S. HPV vaccine introduction among young women. … CONCLUSIONS: We did not find evidence for cross-protection against types not targeted by the 4-valent or 9-valent vaccines, but did find a signal for possible emerging type replacement