Editorial: The association between viral infection and human cancers

The World Health Organization estimates that 15.4% of all cancers are attributable to infections 9 and 9.9% are linked to viruses (Plummer et al., 2016). Cancers that are attributable to infections have 10 a greater incidence than any individual type of cancer worldwide. Eleven pathogens have been 11classified as carcinogenic agents in humans by the International Agency for Research on Cancer 12 (IARC) (Bouvard et al., 2009). After Helicobacter pylori, the four most prominent infection-related 13 causes of cancer are estimated to be viral: human papilloma virus (HPV), hepatitis B virus (HBV), 14 hepatitis C virus (HCV) and Epstein-Barr virus (EBV) (Zapatka et al., 2020