Query: NC_013508:3387272 Edwardsiella tarda EIB202, complete genome
Lineage: Edwardsiella tarda; Edwardsiella; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria
General Information: Edwardsiella tarda is a Gram-negative member of the normal gut microflora of fish, humans, chickens and other animals. This organism is also a serious pathogen of marine and freshwater fish and has been isolated from channel catfish, Japanese eels, flounder, tilapia, and other economically important fish. Infection by this organism is characterized by septicemia, internal abscesses, and skin lesions. This disease is often associated with poor water quality and mortality in aquaculture can be high. Edwardsiella tarda also causes opportunistic infections in humans, most commonly gastroenteritis and wound infections. However, this organism has been isolated from cases of septicemia and meningitis, primarily in immunocompromised patients.
Subject: NC_010263:925500 Rickettsia rickettsii str. Iowa, complete genome
Lineage: Rickettsia rickettsii; Rickettsia; Rickettsiaceae; Rickettsiales; Proteobacteria; Bacteria
General Information: Causative agent for Rocky Mountain Spotted Fever. This organism was first identified by Dr. Howard Rickets as the causative agent of Rocky Mountain Spotted Fever, which was originally named for its geographic distribution at the time, it is now known to be widespread throughout the North American continent. This bacterium is an obligate intracellular pathogen that infects primarily the vascular endothelium, and occasionally smooth muscle tissue. It is passed to the human host from a tick bite, and the tick acts as both a natural reservoir and a vector for disease transmission. Once the organism is endocytosed by the host cell, it quickly escapes the phagozome, and replicates intracellularly, causing cell death and tissue damage. The disease is characterized by a spotted rash and has a high mortality rate if left untreated.