Direct transmission of <i>Escherichia coli</i> from poultry to humans

Ojeniyi, Adé A.

doi:10.1017/s0950268800030910

Cited by 49 publications

(31 citation statements)

References 21 publications

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“…In 1989 a similar study of poultry and farm personnel (186) documented increased antimicrobial resistance in commercially reared birds compared to freerange village poultry. In this study, similar resistance patterns were isolated among poultry personnel and birds but not in village controls (186). Nijsten et al (187) demonstrated the ability of fecal Es.…”

Section: Antimicrobial Resistancesupporting

confidence: 75%

Concentrated Swine Feeding Operations and Public Health: A Review of Occupational and Community Health Effects

Cole¹,

Todd²,

Wing³

2000

Environmental Health Perspectives

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Recent industry change in swine-management practices have resulted in a growing controversy surrounding the environmental and public health effects of modern swine production. The numerous wastes produced by intensive swine production not only pose a significant chalienge to effective environmental management but also are associated with decreased air quality in confinement houses, potentialy transferable antimicrobial resistance patterns, and several infectious agents that can be pathogenic to humans. Published studies have documented a variety of contaminants, microbial agents, and health efFects in those occupationally exposed to swine, and these have provided the groundwork for an increasing body of research to evaluate possible community health effects. Nonetheless, several factors limit our ability to define and quantify the potential role of intensive swine-rearing facilities in occupational and community health. Our incomplete understanding and ability to detect specific exposures; the complicated nature of disease etiology, pathogenesis, and surveillance; and the inherent difficulties assodated with study design all contribute to the inadequate level ofknowledge that currendy prevails. However, an evaluation ofthe published literature, and a recognition of the elements that may be compromising these studies, provides the foundation from which future studies may develop.

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Section: Antimicrobial Resistancesupporting

confidence: 75%

Concentrated Swine Feeding Operations and Public Health: A Review of Occupational and Community Health Effects

Cole¹,

Todd²,

Wing³

2000

Environmental Health Perspectives

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“…If the fecal-oral route is a possible means by which urovirulent E. coli come to inhabit the human intestine, it would seem important to determine what food might serve as their vehicle. Poultry is a candidate vehicle based on the findings of others (Levy et al, 1976;Linton et al, 1977;Ojeniyi, 1989;van den Bogaard et al, 2002;Johnson et al, 2003) that show transmission of avian E. coli from poultry to humans or similarities between avian E. coli and UPEC. Table 6.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Escherichia coli isolates implicated in human urinary tract infection and avian colibacillosis

et al. 2005

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Since avian pathogenic Escherichia coli (APEC) and human uropathogenic E. coli (UPEC) may encounter similar challenges when establishing infection in extraintestinal locations, they may share a similar content of virulence genes and capacity to cause disease. In the present study, 524 APEC and 200 UPEC isolates were compared by their content of virulence genes, phylogenetic group, and other traits. The two groups showed substantial overlap in terms of their serogroups, phylogenetic groups and virulence genotypes, including their possession of certain genes associated with large transmissible plasmids of APEC. Based on these results, the propensity of both groups to cause extraintestinal infections, and a well-documented ability of avian E. coli to spread to human beings, the potential for APEC to act as human UPEC or as a reservoir of virulence genes for UPEC should be considered. However, significant differences in the prevalence of the traits occurred across the two groups, suggesting that if APEC are involved in human urinary tract infections, they are not involved in all of them.

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“…Several studies have investigated the similarities of UPEC and APEC in their serogroups, virulence genotypes and assignments to phylogenetic groups (Johnson et al, 1998(Johnson et al, , 2001aKaper et al, 2004;Mokady et al, 2005;Johnson et al, 2006a;Moulin-Schouleur et al, 2006). It has been proposed that poultry may be a candidate vehicle for E. coli capable of causing human urinary tract disease, based on research showing transmission of avian E. coli from poultry to humans or similarities between avian E. coli and UPEC (Levy et al, 1976;Linton et al, 1977;Ojeniyi, 1989;van den Bogaard et al, 2002). Although previous studies have compared the content of virulence genes between UPEC and APEC, similarities of expression of the specific virulence genes of UPEC and APEC in the same chicken challenge model and/or murine UTI model have not to our knowledge been reported before.…”

Section: Discussionmentioning

confidence: 99%

Comparison of virulence factors and expression of specific genes between uropathogenic Escherichia coli and avian pathogenic E. coli in a murine urinary tract infection model and a chicken challenge model

et al. 2009

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Avian pathogenic Escherichia coli (APEC) and uropathogenic E. coli (UPEC) establish infections in extraintestinal habitats of different hosts. As the diversity, epidemiological sources and evolutionary origins of extraintestinal pathogenic E. coli (ExPEC) are so far only partially defined, in the present study,100 APEC isolates and 202 UPEC isolates were compared by their content of virulence genes and phylogenetic groups. The two groups showed substantial overlap in terms of their serogroups, phylogenetic groups and virulence genotypes, including their possession of certain genes associated with large transmissible plasmids of APEC. In a chicken challenge model, both UPEC U17 and APEC E058 had similar LD 50 , demonstrating that UPEC U17 had the potential to cause significant disease in poultry. To gain further information about the similarities between UPEC and APEC, the in vivo expression of 152 specific genes of UPEC U17 and APEC E058 in both a murine urinary tract infection (UTI) model and a chicken challenge model was compared with that of these strains grown statically to exponential phase in rich medium. It was found that in the same model (murine UTI or chicken challenge), various genes of UPEC U17 and APEC E058 showed a similar tendency of expression. Several iron-related genes were upregulated in the UTI model and/or chicken challenge model, indicating that iron acquisition is important for E. coli to survive in blood or the urinary tract. Based on these results, the potential for APEC to act as human UPEC or as a reservoir of virulence genes for UPEC should be considered. Further, this study compared the transcriptional profile of virulence genes among APEC and UPEC in vivo.

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Direct transmission of Escherichia coli from poultry to humans

Cited by 49 publications

References 21 publications

Concentrated Swine Feeding Operations and Public Health: A Review of Occupational and Community Health Effects

Concentrated Swine Feeding Operations and Public Health: A Review of Occupational and Community Health Effects

Comparison of Escherichia coli isolates implicated in human urinary tract infection and avian colibacillosis

Comparison of virulence factors and expression of specific genes between uropathogenic Escherichia coli and avian pathogenic E. coli in a murine urinary tract infection model and a chicken challenge model

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