Bacterial competition as a means of preventing neonatal diarrhea in pigs.
نویسندگان
چکیده
Baby pigs orally inoculated with a porcine strain of enterotoxigenic Escherichia coli (K88+,Ent+) showed signs of depression, severe diarrhea, and, in some instances, death. Few, if any, signs of illness occurred if baby pigs were first inoculated with a K88 possessing non-enterotoxin-producing strain of E. coli.
منابع مشابه
Enterotoxigenic Escherichia coli infection in pigs and its diagnosis
7 5 1 O c a 8 1 F b T S , a T S ± e 2 x t S + o N s e Y Table 1: Characteristics of enterotoxigenic Escherichia coli (ETEC) strains associated with infections in pigs of various ages1 Enterotoxigenic Escherichia coli (ETEC) is a major cause of illness and death in neonatal and recently weaned pigs. However, pigs older than approximately 8 weeks appear to be resistant to infection. Strains of ET...
متن کاملClonal analysis of Escherichia coli of serogroups O9, O20, and O101 isolated from Australian pigs with neonatal diarrhea.
The genetic diversity of 87 isolates of Escherichia coli recovered from Australian pigs with neonatal diarrhea was examined by multilocus enzyme electrophoresis. The isolates were of serogroups O9, O20, and O101, and although most isolates lacked K88(F4), K99(F5), 987P(F6), and F41 fimbriae, they were considered to be involved in the etiology of the diarrhea. The isolates were extremely diverse...
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Introduction: Due to the side effects of overuse of antibiotics, the aim of study was to evaluate the optimal antibiotic use in children with gastroenteritis. Methods: This descriptive-analytical study was conducted on 178 children with gastroenteritis from January to December 2018. Data including age, gender, clinical symptoms and laboratory findings were extracted from records. Results: Out...
متن کاملExpression of mucin-type glycoprotein K88 receptors strongly correlates with piglet susceptibility to K88(+) enterotoxigenic Escherichia coli, but adhesion of this bacterium to brush borders does not.
Three antigenic variants of the K88 fimbrial adhesin exist in nature, K88ab, K88ac, and K88ad. Enterotoxigenic Escherichia coli (ETEC) strains that produce these fimbriae cause life-threatening diarrhea in some but not all young pigs. The susceptibility of pigs to these organisms has been correlated with the adherence of bacteria to isolated enterocyte brush borders. Whether that correlation ho...
متن کاملAge-related resistance to 987P fimbria-mediated colonization correlates with specific glycolipid receptors in intestinal mucus in swine.
Strains of enterotoxigenic Escherichia coli that produce 987P fimbriae (987P+ strains) colonize the small intestines and cause diarrhea in neonatal (< 6-day-old) pigs but not in weaned pigs. However, 987P+ E. coli strains adhere in vitro to intestinal epithelial cells from pigs of both ages. Two intestinal components, designated 987R and 987M, bind 987P fimbriae (987P) on Western blots (immunob...
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ورودعنوان ژورنال:
- Infection and immunity
دوره 13 6 شماره
صفحات -
تاریخ انتشار 1976