Pre_GI: SWBIT SVG BLASTN

Query: NC_009879:1035446 Rickettsia canadensis str. McKiel, complete genome

Lineage: Rickettsia canadensis; Rickettsia; Rickettsiaceae; Rickettsiales; Proteobacteria; Bacteria

General Information: This organism was originally isolated from ticks in a field study on tick-transmitted diseases of small mammals in Canada. Member of the typhus group of Rickettsiales. Members of this genus, like other Rickettsial organisms such as Neorickettsia and Anaplasma, are obligate intracellular pathogens. In both groups, the bacteria are transmitted via an insect, usually a tick, to a host organism where they target endothelial cells and sometimes macrophages. They attach via an adhesin, rickettsial outer membrane protein A, and are internalized where they persist as cytoplasmically free organisms. Rickettsia canadensis was originally thought to be a member of the typhus group of Rickettsiales, however, it is now thought to represent a distict group with the rickettsia.

Subject: NC_014932:1387818 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.