The human papilloma virus (HPV) is a virus that is spread through sexual contact and causes warts in many parts of the body and is the most common STI.There are many types of the disease and while most infections disappear, some strains can cause cancer. Some types of HPV are also linked to cervical cancer.

It has also been linked to genital warts, penile, anal, throat, head and neck cancer.For treatment, a vaccine that prevents the HPV strains most likely to cause genital warts and cervical cancer is recommended for boys and girls. However, results of a major global trial suggest that an improved HPV vaccine marketed by pharmaceutical giant Merck & Co has the potential to reduce 90 percent of cervical cancers worldwide.This study, published in the journal Lancet, involved more than 14,000 women in 18 countries and found that the nine-valent human papilloma virus vaccine, Gardasil 9,…