Query: NC_000963:110500 Rickettsia prowazekii str. Madrid E, complete genome Lineage: Rickettsia prowazekii; Rickettsia; Rickettsiaceae; Rickettsiales; Proteobacteria; Bacteria General Information: This strain is an egg-passaged attentuated avirulent strain that has been used as a live vaccine and was originally isolated from a typhus patient in Madrid. This species is the causal agent of typhus. The bacteria are transmitted via an insect, usually a tick, to a host organism, in this case humans, 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. Transovarial transmission (from mother to offspring) occurs in the invertebrate host.
- Sequence; - BLASTN hit (Low score = Light, High score = Dark) - hypothetical protein; - cds: hover for description
General Information: This organism is the causative agent of Glasser's disease in swine but is usually found as a commensal organism in the upper respiratory tract. Glasser's disease is responsible for significant losses in swine husbandry. The disease was first noted in 1910 by Glasser and the organism requires factor V (NAD - nicotinamide adenine dinucleotide) growth factor, like H. suis, but not factor X (iron porphyrin) which H. suis requires. Pathogenicity and virulence are often strain specific. Symptoms include fibrinous polyserositis (fibrous inflammation of serous membranes, polyarthritis (inflammation of multiple joints) and meningitis (inflammation of meninges)and pneumonia.