Query: NC_009505:531000 Brucella ovis ATCC 25840 chromosome I, complete sequence
Lineage: Brucella ovis; Brucella; Brucellaceae; Rhizobiales; Proteobacteria; Bacteria
General Information: This strain was isolated from sheep tissue in Australia. Causes brucellosis in sheep. This organism specifically affects sheep, causing ovine brucellosis which results in significant economic losses. Infection by the organism can cause infertility in rams as the bacterium preferentially colonizes the genital tract, and causes inflammation of the epididymis which leads to necrotic lesions and a decrease in sperm numbers and motility. This bacterium, like other Brucella, is an intracellular pathogen that infects phagocytic cells such as macrophages. Bacterial cells produces a lipopolysaccharide that lacks O-antigen side chains, which results in a rough colony phenotype, and aids in differentiation as compared to other Brucella.
Subject: NC_002929:52500 Bordetella pertussis Tohama I, complete genome
Lineage: Bordetella pertussis; Bordetella; Alcaligenaceae; Burkholderiales; Proteobacteria; Bacteria
General Information: This strain was originally isolated from a patient with whooping cough and has been studied extensively for over 40 years. Causative agent of whooping cough. This group of organisms is capable of invading the respiratory tract of animals and causing severe diseases. They express a number of virulence factors in order to do this including filamentous hemagglutins for attachment, cytotoxins, and proteins that form a type III secretion system for transport of effector molecules into host cells. This organism, which is unable to persist in the environment, is a strict human pathogen that causes whooping cough. Once a common cause of death in children the development of a vaccine has greatly decreased the number of deaths due to Bordetella pertussis. However, this organism infects and estimated 39 million people and kills hundreds of thousands of people each year.