Query: NC_011852:211314 Haemophilus parasuis SH0165, complete genome
Lineage: Haemophilus parasuis; Haemophilus; Pasteurellaceae; Pasteurellales; Proteobacteria; Bacteria
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.
Subject: NC_008710:621822 Borrelia turicatae 91E135, complete genome
Lineage: Borrelia turicatae; Borrelia; Spirochaetaceae; Spirochaetales; Spirochaetes; Bacteria
General Information: This strain was isolated in the USA from the soft tick Ornithodoros turicatae. Borrelia turicatae is the causative agent of tick-borne relapsing fever in the southwestern USA. Ticks become infected with Borrelia while feeding on an infected mammal, usually a rodent or squirrel. Borrelia then multiplies rapidly, causing a generalized infection throughout the tick. While feeding, the tick passes the spirochete into a mammalian host through its infectious saliva. Relapsing fever is characterized by period of chills, fever, headache, and malaise, followed by an asymptomatic, followed by another episode of symptoms. The cycle of relapsing is due to changes in the surface proteins of Borrelia, which allow it to avoid detection and removal by the host immune system. This antigenic variation is the result of homologous recombination of silent proteins into an expressed locus, causing partial or complete replacement of one serotype with another. These plasmids carry genes involved in antigenic variation and pathogenicity.