In what could be interpreted as a PR move or an act of genuine goodness, drug giant Merck has plans to give up to one million doses of its cancer drug Gardisil away for free.

Up to one million women in some of the world's poorest countries will be given the drug donations, which will be given in three shots spread over three months.

Cervical cancer, which is the second-leading cause of cancer deaths worldwide according to Merck, is highly preventable in many cases since the cause stems from a viral infection, usually by unprotected sexual contact.

In many cases, it can be prevented by prudent sexual practices as well as preventive screening, which can detect the early stages of cervical cancer.