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===Cholangiofibrosis===

===Cholangiofibrosis===

Also called cholangiohepatitis,the cause of this pathology is thought to be from a Helicobacter species called ''H. cholecysticus''. Affected hamsters display no clinical signs.

Also called cholangiohepatitis, the cause of this pathology is thought to be from a Helicobacter species called ''H. cholecysticus''. Affected hamsters display no clinical signs.

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Macroscopic pathology includes bile duct hyperplasia, pericholangial fibrosis and centrilobular pancreatitis.

Macroscopic pathology includes bile duct hyperplasia, pericholangial fibrosis and centrilobular pancreatitis.

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===Lymphocytic Choriomeningitis Virus (LCM)===

===Lymphocytic Choriomeningitis Virus (LCM)===

LCM is an RNA virus from the arenavirus group and is rare in hamsters, although most reported human cases have been associated with infected hamsters. ''In utero'' or perinatal infections may facilitate chronic infection resulting in a progressive wasting disease affecting the liver, spleen, lung, meningies and brain. Approximately 50% of hamsters will clear the infection.

LCM is an RNA virus from the arenavirus group and is rare in hamsters, although most reported human cases have been associated with infected hamsters. ''In utero'' or perinatal infections may facilitate chronic infection resulting in a progressive wasting disease affecting the liver, spleen, lung, meningies and brain. Approximately 50% of hamsters will clear the infection.