Query: NC_016930:943000 Rickettsia philipii str. 364D chromosome, complete genome
Lineage: Rickettsia philipii; Rickettsia; Rickettsiaceae; Rickettsiales; Proteobacteria; Bacteria
General Information: Rickettsiae are obligate intracellular Gram-negative bacteria mostly found in arthropods, some of which cause mild to severe diseases in humans. Spotted fever group rickettsiae (SFGR) cause disease in humans. R .philippi strain 364D, an SFGR, was isolated in 1966 from Dermacentor occidentalis ticks collected in Ventura county, California, and since then 364D has been detected in up to 11% of D. occidentalis from 8 California counties. It has now been recognized as causing eschar-associated illness.
Subject: NC_008599:1291300 Campylobacter fetus subsp. fetus 82-40, complete genome
Lineage: Campylobacter fetus; Campylobacter; Campylobacteraceae; Campylobacterales; Proteobacteria; Bacteria
General Information: This strain (82-40) was isolated from the blood of a human patient who was having a renal transplant and is the best characterized isolate of this species.. The ratio of bloodstream infection to diarrheal illnesses for C. fetus is nearly 400-fold higher than for C. jejuni, indicating its marked propensity for invasive disease compared to C. jejuni. Causes infertility, infectious abortions in cattle, opportunistic human pathogen. This organism causes infertlity and infectious abortions in domesticated sheep, goats and cattle. It is an opportunistic pathogen in humans which can severely affect immunocompromised patients. Initially the bacterium can cause gastroenteritis, and then spread systemically throughout the blood (bacteremia) and cause septicemia, meningitis, and other systemic infections. This layer is essential for host colonization, and prevents complemented-mediated immune responses by inhibiting complement C3b binding.