The human papillomavirus 9-valent vaccine, recombinant, or 9vHPV, provides protection against how many HPV serotypes?

The human papillomavirus 9-valent vaccine, known as 9vHPV, provides protection against nine serotypes of HPV. This vaccine is designed to prevent infections caused by the most common high-risk types of the virus that can lead to cervical cancer, as well as other HPV-related diseases. It specifically targets serotypes 6, 11, 16, 18, 31, 33, 45, 52, and 58.

The development of this vaccine represents an important advancement in the prevention of HPV-associated diseases, as it expands upon the protections offered by earlier vaccines, which covered fewer serotypes. By protecting against nine types instead of just four or five, the 9vHPV vaccine provides broader immunity and helps reduce the incidence of HPV-related cancers and genital warts.