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Multiplex PCR and RPLA Identification of Staphylococcus aureus Enterotoxigenic Strains From Bulk Tank Milk

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027162%3A_____%2F08%3A%230000346" target="_blank" >RIV/00027162:_____/08:#0000346 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Multiplex PCR and RPLA Identification of Staphylococcus aureus Enterotoxigenic Strains From Bulk Tank Milk

  • Original language description

    Out of 440 bulk tank milk samples from 298 dairy herds, 70 proved positive for S. aureus (15.9%). Staphylococcal enterotoxin genes (ses) were detected in 39 (55.7%) isolates. The genes most commonly detected were sei (38.6%), seg (31.4%) and sea (27.1%).Genes seb, seh, sed, sej and sec were observed in 10%, 4.3%, 2.9%, 2.9% and 1.4% of strains respectively. Genes see and sel did not occur. The most frequently detected genotypes were seg, sei at 11.4%; sea at 10.0%; and sea, seg, sei at 8.6%. Toxin production was observed in nine (12.9%) S. aureus isolates. Seven strains were detected as SEB- (10%) and two as SED- (2.9%) producing. A relatively high number (32%) of discrepancies between the results with multiplex PCR and RPLA assays was obtained, particularly on account of SEA. The results of both methods were identical concerning SEB and SED. It was concluded that detection of ses by PCR was a useful additional tool to support identification of enterotoxigenic strains.

  • Czech name

    Identifikace enterotoxigenních kmenů Staphylococcus aureus v bazénových vzorcích mléka metodami multiplex PCR a RPLA

  • Czech description

    Bylo vyšetřeno 440 bazénových vzorků mléka z 298 mléčných stád, z nichž 70 vzorků bylo pozitivních na přítomnost S. aureus (15,9 %). Geny kódující stafylokokové enterotoxiny (ses)byly detekovány u 39 (55,7 %) izolátů. Nejčastěji detekované byly geny sei(38,6 %), seg (31,4 %) a sea (27,1 %). Geny seb, seh, sed, sej a sec byly pozorovány v 10 %; 4,3 %, 2,9 %, 2,9 % a 1,4 % případů. Geny see a sel nebyly zachyceny. Nejčastějším genotypem byl seg, sei (11,4 %); sea (10 %); a sea, seg, sei (8,6 %). Produkcetoxinů byla pozorována u 9 (12,9 %) izolátů. SEB produkovalo 7 kmenů (10 %), SED 2 kmeny (2,9 %). Ukázaly se poměrně značné diskrepance mezi oběma metodami, zejména díky SEA. Naopak výsledky obou metod se shodovaly v případech SEB a SED. Detekce ses metodou PCR je užitečnou doplňkovou metodou pro identifikaci enterotoxigenních kmenů.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    EE - Microbiology, virology

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Zoonoses and Public Health

  • ISSN

    1863-1959

  • e-ISSN

  • Volume of the periodical

    55

  • Issue of the periodical within the volume

    6

  • Country of publishing house

    GE - GEORGIA

  • Number of pages

    7

  • Pages from-to

  • UT code for WoS article

    000257711800005

  • EID of the result in the Scopus database