Table1.

Infectious Agents, Cancer Sites and Mechanisms of Carcinogenesis

Reference	Mechanisms of Carcinogenesis	Cancer Sites	Infectious Agents
(17,19)	Chronic Direct and carcinogens inflammation	Hepatocellular carcinoma	HBV
(26)	Chronic inflammation	Hepatocellular carcinoma	HCV
(34,36)	Direct carcinogens	Burkitt's lymphoma, Nasopharyngeal carcinoma and Hodgkin lymphoma	EBV
(43)	Direct carcinogens	Carcinoma of cervix, vulva anus, oral cavity	HPV
(49)	Immune suppression	Kaposi sarcoma, non-Hodgkin lymphoma, carcinoma of the cervix	HIV
(52,56)	Chronic inflammation	Adenocarcinoma and lymphoma	H.pylori
(58)	Chronic inflammation	Colorectal cancer	S. bovis