22 Aug '11, 11pm

Cervical vaccine cuts anal cancer risk

Cervical vaccine cuts anal cancer risk

PARIS: A vaccine routinely used to shield against cervical cancer caused by the human papillomavirus also reduces women's risk of anal cancer, a study published by the journal The Lancet Oncology on Tuesday said. The trial involved 4,210 healthy women aged 18-25 in Costa Rica, who were randomly assigned the human papillomavirus (HPV) vaccine Cervarix or an ordinary hepatitis A vaccine as a comparison. Four years later, the women were tested for cervical and anal infections by the 16 and 18 types of HPV, which are notoriously associated with cancer. Women who received Cervarix had a 76-per cent lower risk of cervical infection and a 62-per cent lower risk of anal infection compared with un-inoculated counterparts. The protection was even higher in a sub-group of women who most probably had no previous exposure to HPV. In this category, the vaccine was nearly 89-per cent pro...

Full article: http://www.channelnewsasia.com/stories/health/view/114856...

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