The pathogenicity for mice of group B streptococci of bovine origin
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چکیده
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Presence of insertion sequences (IS elements) in group B streptococci of bovine origin.
BACKGROUND & OBJECTIVES Streptococcus agalactiae (group B streptococci, GBS) is one of the leading causative agents of human and animal infections. Recently it was demonstrated that integration of different IS elements could inactivate some of the GBS virulence properties. The presence of IS elements in human isolates has been studied while the bovine isolates were not investigated till now. Th...
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15 صفحه اولDeletion of repeats in the alpha C protein enhances the pathogenicity of group B streptococci in immune mice.
The alpha C protein is a protective surface-associated antigen of group B streptococci (GBS). The prototype alpha C protein of GBS (strain A909) contains nine identical tandem repeats, each comprising 82 amino acids, flanked by N- and C-terminal domains. Clinical isolates of GBS show variable numbers of repeats with a normal distribution and a median of 9 to 10 repeats. Here, we show that escap...
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ژورنال
عنوان ژورنال: Journal of Hygiene
سال: 1949
ISSN: 0022-1724
DOI: 10.1017/s0022172400014418