نتایج جستجو برای: o55
تعداد نتایج: 245 فیلتر نتایج به سال:
The genetic relationships among 1,300 isolates of Escherichia coli representing 16 serotypes associated with enteric disease, including O157:H7 strains recovered from patients with hemorrhagic colitis and hemolytic uremic syndrome and O26:H11, O55:H6, O55:H7, O111:H2, and O128:H2 strains, many of which were isolated originally from infants with diarrhea, were estimated from allelic variation am...
A coinfection of O177:NM and O55:H7 Shiga toxin-producing Escherichia coli (STEC) was identified for a child with acute bloody diarrhea and hemolytic uremic syndrome by using culture and serotype-specific molecular reagents. The profile of O157-related genetic islands revealed that the O55:H7 isolate was highly similar to O157 STEC whereas the O177:NM isolate lacked several fimbrial O islands a...
Escherichia coli O157, Salmonella enterica O30, and Citrobacter freundii F90 have identical O-antigen structures, as do E. coli O55 and S. enterica O50. The O-antigen gene cluster sequences for E. coli O157 and E. coli O55 have been published, and the genes necessary for O-antigen biosynthesis have been identified, although transferase genes for glycosidic linkages are only generic and have not...
در اردیبهشت 1390 تعداد 25 راس میش دنبه دار ایرانی به ظاهر سالم با وزن تقریبی 5/1±25 کیلوگرم انتخاب شدند. چهار هفته پیش از آغاز پژوهش، تمامی گوسفندان توسط آلبندازول (15 میلی گرم/کیلوگرم، خوراکی) و آیورمکتین (2/0 میلی گرم/کیلوگرم، زیرپوستی) مورد درمان ضدانگلی قرار گرفتند. در ادامه، میش ها به 5 گروه مساوی (5 میش در هر گروه) شامل انسولین 5/1، انسولین 3، فلونیکسین، دگزامتازون و کنترل تقسیم شدند. لیپ...
A study on hemagglutination and hemolysis by Escherichia coli O111 and O55 (rabbit) antisera and on hemagglutination and hemolysis inhibition by E. coli O111 and O55 antigens revealed the following facts. 1. Red blood cells of man, dog, rabbit, guinea pig, sheep, rat, and chicken adsorb E. coli O111 and O55 antigens and thus become specifically agglutinable by the homologous E. coli antisera. 2...
ORAL PRESENTATIONS Discussion: Cross-resistance to different antibacterial agents including quinolones and nalidixic acid, chloramphenicol, trimethoprim and in some cases b-lactam antibiotics is a common phenomenon in Gram-negative bacteria (Gutmann et al., 1995). In this study adaptive resistance in Salmonella enterica and E. coli O157, O55 and K-12 was readily achieved by passage in sublethal...
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