نتایج جستجو برای: salmonella typhi vi
تعداد نتایج: 81600 فیلتر نتایج به سال:
Vi capsular polysaccharide production is encoded by the viaB locus, which has a limited distribution in Salmonella enterica serovars. In S. enterica serovar Typhi, viaB is encoded on a 134-kb pathogenicity island known as SPI-7 that is located between partially duplicated tRNA(pheU) sites. Functional and bioinformatic analysis suggests that SPI-7 has a mosaic structure and may have evolved as a...
A novel ligand, 1-(4-methoxybenzylidene)-4-methylthiosemicarbazone (MBT) derived from 4-methoxybenzaldehyde was synthesized and characterized by spectroscopic methods (IR, H NMR, C NMR), single crystal X-ray diffraction technique and physical means. MBT showed antibacterial activity in vitro with MICs of 64 μg/mL (a strain of Salmonella typhi (ATCC 6539)), 128 μg/mL (Salmonella typhi), 64 μg/mL...
The present investigation examined the specificity of the salivary immune response of axenic and conventional mice to topically administered Salmonella typhi, S. gallinarum, and S. typhimurium. Specific antibacterial antibodies were determined by passive hemagglutination and bacterial agglutination. Reciprocal antibody titers up to 320 were detected in saliva from mice immunized and assayed wit...
Enteric fever is endemic in most of the developing regions, especially the Indian subcontinent. Salmonella Typhi (S. Typhi) bacteremia is known to be associated with extra-intestinal disease. It is capable of forming abscesses in various organs, such as spleen, subcutaneous tissue and skin. The pathogenesis of abscess formation is not well established. Salmonella spp. can, though rarely, cause ...
INTRODUCTION Typhoid fever is the most common illness caused by Salmonella typhi (S. typhi).(1) S. typhi bacteriuria can be seen following a recent episode of typhoid fever, or in chronic carrier state involving the urinary system, especially with local abnormalities of urinary tract.(2) However, S. typhi bacteriuria with renal stone disease has rarely been reported.(2) We presented a rare case...
A number of bacteriophages have been identified that target the Vi capsular antigen of Salmonella enterica serovar Typhi. Here we show that these Vi phages represent a remarkably diverse set of phages belonging to three phage families, including Podoviridae and Myoviridae. Genome analysis facilitated the further classification of these phages and highlighted aspects of their independent evoluti...
Non-typhoidal Salmonella are infrequent causes of childhood meningitis. Most reports of Salmonella typhi meningeal infections are confined to neonates. A rare instance of S. typhi in an otherwise healthy eleven month old infant is being reported.
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