Query: NC_014932:985882 Bartonella clarridgeiae 73, complete genome
Lineage: Bartonella clarridgeiae; Bartonella; Bartonellaceae; Rhizobiales; Proteobacteria; Bacteria
General Information: Bartonella clarridgeiae was first identified from a case of cat scratch fever in a veterinarian who had been bitten by a cat. This organism has subsequently been identified in both cats and dogs. Cats, which are infected by fleas carrying the bacteria, in turn infect humans when scratching or biting them, hence the name. A small red bump forms at the site of infection, followed 2-3 weeks later by a painful swelling of the lymph node. In immunocompromized patients, more severe progress may be observed, including encephalitis, swelling of the spleen, and heart valve infection. Approximately 24 000 cases are reported in the US each year.
Subject: NC_004917:340997 Helicobacter hepaticus ATCC 51449, complete genome
Lineage: Helicobacter hepaticus; Helicobacter; Helicobacteraceae; Campylobacterales; Proteobacteria; Bacteria
General Information: This organism was found to be linked to an increasing incidence of liver tumors in mouse colonies at the National Cancer Institute in 1992. Normally it resides in the lower intestines, but it can cause chronic hepatitis. This organism has a similar urease gene cluster and cytolethal distending toxin as compared to Helicobacter pylori, but lacks other virulence factors such as the vacuolating cytotoxin and the cag pathogenicity island. However, it does contain a pathogenicity island that encodes proteins similar to those found in a type IV secretion system. Causes liver disease. This genus consists of organisms that colonize the mucosal layer of the gastrointestinal tract or are found enterohepatically (in the liver). This species was associated with an increase in liver tumors. It can cause active chronic hepatitis and typhlitis (inflammation of a region at the beginning of the large intestine), hepatocellular tumors, and gastric bowel disease in various mice strains.