The Genome of Streptococcus mitis B6 - What Is a Commensal?
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The Genome of Streptococcus mitis B6 - What Is a Commensal?
Streptococcus mitis is the closest relative of the major human pathogen S. pneumoniae. The 2,15 Mb sequence of the Streptococcus mitis B6 chromosome, an unusually high-level beta-lactam resistant and multiple antibiotic resistant strain, has now been determined to encode 2100 genes. The accessory genome is estimated to represent over 40%, including 75 mostly novel transposases and IS, the proph...
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In recent months Hong Kong citizens have learned much about a lethal bacterium— Streptococcus suis— which has caused at least 38 deaths among 204 people infected in Sichuan province alone. They were told that this bacterium is widely spread among pigs; many carry it without developing any illness. Environmental factors such as high temperature or humidity might trigger off a clinical infection ...
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The commensal bacterium Streptococcus salivarius is a prevalent species of the human oropharyngeal tract with an important role in oral ecology. Here, we report the complete 2.2-Mb genome sequence and annotation of strain JIM8777, which was recently isolated from the oral cavity of a healthy, dentate infant.
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BACKGROUND Carriage of and infection with Streptococcus pneumoniae is known to predominantly induce T helper 17 (Th17) responses in humans, but the types of Th cells showing reactivity towards commensal streptococci with low pathogenic potential, such as the oral commensals S. mitis and S. salivarius, remain uncharacterized. METHODS Memory CD4(+) T helper (Th) cell subsets were isolated from ...
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It is important in order to advance the increasingly successful attack on subacute bacterial endocarditis to be able to produce the disease experimentally and to treat it with new and improved therapeutic regimens. Since endocarditis caused by Streptococcus mitis has not been consistently produced previously in the dog, a study was undertaken in which cardiovascular stress was created by the es...
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ژورنال
عنوان ژورنال: PLoS ONE
سال: 2010
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0009426