Which virus family causes warts and is targeted by Gardasil vaccine?

• A. Herpes simplex virus
• B. Papillomaviruses
• C. Poxviruses
• D. Adenoviruses

Answer: (B)

Warts are caused by infections with papillomaviruses, a family of small DNA viruses that infect skin and mucous membranes. Gardasil is designed to protect against human papillomavirus (HPV) types that commonly cause warts and cancers. Specifically, it targets the types most often associated with benign warts (such as genital warts) and with cervical and other cancers (the high‑risk types). The vaccine works by presenting virus-like particles that stimulate the immune system to produce antibodies, so if exposed later, the body can neutralize those HPV types before infection takes hold. Other viruses listed belong to different families and do not fall under Gardasil’s target range. Herpesviruses cause herpes lesions, poxviruses include agents like those causing molluscum contagiosum and smallpox, and adenoviruses cause respiratory infections.