مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

video

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

sound

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Version

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View:

399
مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Download:

216
مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Cites:

Information Journal Paper

Title

PREVALENCE AND DISTRIBUTION OF THE STX1, STX2 GENES IN SHIGA TOXIN PRODUCING E. COLI (STEC) ISOLATES FROM CATTLE

Pages

  9-14

Keywords

Abstract

 Background and Objectives: Shiga toxin-producing Escherichia coli (STEC) strains are human pathogens linked to hemorrhagic colitis and hemolytic uremic syndrome. Shiga toxins (Stx1 and STX2) are the major virulence factors of these strains. The aim of this work was to study the prevalence and distribution of STX1 and STX2 gene in E. coli O157:H7 and non-O157:H7 strains isolated from CATTLE in Shiraz, IRAN.Materials and Methods: Four hundred and twenty samples consisted of recto-anal mucosal swabs were collected from CATTLE. They were checked for the presence of the STX1 and STX2 gene using multiplex-PCR every 1 week over a 1-year period (2007-2008).Results: A total of 146 strains carrying the STX1 and STX2 gene were isolated from 51 (12.14%) CATTLE. Overall, 15 (3.57%) were identified as O157:H7 and 131 (31.19%) revealed to be non-O157:H7. Both STX2 and STX1 genes were detected in 51 (34.93%) STEC isolates. Genotypes STX1 and STX2 were detected in 15 (10.27%) and 78 (53.42%) respectively. Seasonal distribution of stx genes revealed high percentage of positive animals in warm seasons. The gene sequence similarity ranged from 94 to 100%.Conclusion: Frequency of STX1 and STX2 in animals and its relation to human disease is not well understood in IRAN. The high prevalence of STEC in CATTLE seems to parallel that which is usually observed in warm seasons and it also parallels occurrence of human STEC. The higher prevalence of the STX2 gene than STX1 in strain populations isolated from CATTLE indicates a risk alert of E. coli O157:H7 being shed by CATTLE in these populations. Appropriate measures are now needed to prevent the spread of this life-threatening food borne disease in our country.

Cites

  • No record.

    • References

    Cite

    APA: Copy

    TAHAMTAN, Y., HAYATI, M., & NAMAVARI, M.M.. (2010). PREVALENCE AND DISTRIBUTION OF THE STX1, STX2 GENES IN SHIGA TOXIN PRODUCING E. COLI (STEC) ISOLATES FROM CATTLE. IRANIAN JOURNAL OF MICROBIOLOGY, 2(1), 9-14. SID. https://sid.ir/paper/315236/en

    Vancouver: Copy

    TAHAMTAN Y., HAYATI M., NAMAVARI M.M.. PREVALENCE AND DISTRIBUTION OF THE STX1, STX2 GENES IN SHIGA TOXIN PRODUCING E. COLI (STEC) ISOLATES FROM CATTLE. IRANIAN JOURNAL OF MICROBIOLOGY[Internet]. 2010;2(1):9-14. Available from: https://sid.ir/paper/315236/en

    IEEE: Copy

    Y. TAHAMTAN, M. HAYATI, and M.M. NAMAVARI, “PREVALENCE AND DISTRIBUTION OF THE STX1, STX2 GENES IN SHIGA TOXIN PRODUCING E. COLI (STEC) ISOLATES FROM CATTLE,” IRANIAN JOURNAL OF MICROBIOLOGY, vol. 2, no. 1, pp. 9–14, 2010, [Online]. Available: https://sid.ir/paper/315236/en

    Related Journal Papers

  • No record.

    • Related Seminar Papers

  • No record.

    • Related Plans

  • No record.

    • Recommended Workshops






    Move to top
    telegram sharing button
    whatsapp sharing button
    linkedin sharing button
    twitter sharing button
    email sharing button
    email sharing button
    email sharing button
    sharethis sharing button