Most of the infections linked to human cancers are common in human populations; they are ubiquitous. They were present during the whole human evolution process. — Harald zur Hausen Copy Share Image
It is important to note that there exist vast gender differences in the global role of papillomaviruses in human cancers. This is mainly due to the role of this virus family in the induction of cancer of the cervix. — Harald zur Hausen Copy Share Image
