Host entry is gained in the small intestine where the bacteria injects a toxin into the normally non-phagocytic M cells that causes them to ingest the bacteria where it infects the lamina propria, causing such symptoms as gastroenteritis.  
It is a Gram negative bacillus of 2,200 serotypes grouped into three species, and it is closely related to Shigella.   Host entry is gained in the small intestine where the bacteria injects a toxin into the normally non-phagocytic M cells that causes them to ingest the bacteria where it infects the lamina propria, causing such symptoms as gastroenteritis.  These organisms are rarely fatal except in cases where they cause typhoid.  FTP, name this bacteria that is most difficult to detect in egg shells but is largely associated with dairy products and poultry.
It is a Gram negative bacillus of 2,200 serotypes grouped into three species, and it is closely related to Shigella.   
Salmonella