Human papilloma virus

The viruses that contain DNA as their genetic material and can induce tumors are called DNA-tumor viruses. They are placed under Papova virus group. Papilloma virus is one type of Papova virus. They cause papillomas or warts of cutaneous and mucosal epithellia in human and other animals, therefore they are called Papilloma viruses. They are nearly 60 sub-types in the warts caused due to human papilloma virus. Transmission is by contact with virus either in living skin or in fragments of shed skin. Genital warts frequently spread by intercourse and perianal warts may reflect homosexual activity. There appears to be a close, if not causative, relationship with genital warts, especially due to HPV type 16 and 18 and carcinoma of the cervix. Nearly 80 per cent of cases with cervical carcinoma harbour one of these viruses. Cervical carcinoma is most common among women with several sexual partners. It is suspected that penile cancer is also due to these types of papilloma viruses.

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