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Prevalence and characteristics of Staphylococcus aureus strains isolated from bulk and composite milk and cattle handlers


, : Prevalence and characteristics of Staphylococcus aureus strains isolated from bulk and composite milk and cattle handlers. Journal of Food Protection 61(5): 629-632

The prevalence and characteristics of Staphylococcus aureus strains isolated from bulk and composite milk and from cattle handlers on dairy farms in Trinidad were determined. S. aureus strains were isolated from all 175 bulk milk samples tested (100%) while 280 of 287 composite milk samples (97.6%) yielded S. aureus. The mean counts of S. aureus in bulk milk ranged from 5.9 x 10(3) to 1.2 x 10(5) CFU/ml compared with mean S. aureus counts in composite milk which ranged from 2.4 x 10(3) to 3.0 x 10(4) CFU/ml. Of the 105 strains of S. aureus from bulk milk tested, 45 (42.9%) were enterotoxigenic elaborating staphylococcal enterotoxin A (SEA), SEB, SEC, SED, or a combination compared to 69 of 146 strains (47.3%) recovered from composite milk which were enterotoxigenic, but the difference was not statistically significant (P > = 0.05; chi 2). Twenty-two of 42 bulk milk samples containing enterotoxigenic S. aureus (52.4%) had counts of the organism which exceeded 10(4) CFU/ml. For S. aureus strains isolated from cattle handlers, 66 of 146 (45.2%) were enterotoxigenic. Prevalence of resistance to nine antimicrobial agents tested was 18.7% and 12.9% among bulk milk and composite milk isolates, respectively, compared to 49.3% and 69.5%. among isolates from human anterior nares and hand swabs, respectively. Resistance to ampicillin and penicillin was highest among both milk (12.2%) and human (53.6%) isolates of S. aureus, and the difference was statistically significant (P < or = 0.001; chi 2). It was concluded that bulk milk containing relatively high counts of enterotoxigenic S. aureus may constitute a health hazard to consumers.

US$29.90

PMID: 9709240


Other references

Belfiore C., 1983: Notes on italian heptageniidae ephemeroptera rhithrogena fiorii and rhithrogena adrianae new species. Rhithrogena adrianae, a new species related to R. diaphana Nav., is described from nymphs and male imagines collected in Central Italy. Taxonomic characters of nymphs and males of R. fiorii Grandi, whose nymphal stage was previously unknown, are a...

Brenner R.P.; Garga V.K.; Blight G.E., 1997: Shear strength behaviour and the measurement of shear strength in residual soils. Pages 155-220 1997

Anonymous, 1886: Comment And Criticism. Science 7(159): 155-156

Prof. Dr. Ulrich Bässler, 1995: Konzepte der Ethologie im Licht neurophysiologischer Forschung an Stabheuschrecken. Verhalten setzt sich hufig aus einer Folge von Bewegungen zusammen, und diese Bewegungen werden vom Nervensystem gesteuert. Wie nun solche Bewegungsbefehle im Nervensystem gebildet werden, welche nervsen Ursachen also einer bestimmten Verhaltenswe...

Boas, J.E.V., 1885: Vorlaufige Mittheilung uber einigen gymnosomen Pteropoden (Spongiobranchaea, D'Orb., Dexiobranchaea, g.n., Cliopsis, Tr.). Dexiobranchaea g. n. id. t. c. p. 688; for Pneumodermon cilialum, Gbr. Only possesses one gill, the lateral gill of Pneumodermon, which is represented by a well-developed triangular cutaneous pvooess; has two arms with suckers which appear here sh...

Feitosa-Alcantara, R.B.; Bacci, L.; Blank, A.F.; Alves, Péricles.B.; Silva, I.Morgana.de.A.; Soares, C.A.; Sampaio, Tís.S.; Nogueira, P.Cesar.de.L.; Arrigoni-Blank, M.de.Fátima., 2017: Essential Oils of Hyptis pectinata Chemotypes: Isolation, Binary Mixtures and Acute Toxicity on Leaf-Cutting Ants. Leaf-cutting ants are pests of great economic importance due to the damage they cause to agricultural and forest crops. The use of organosynthetic insecticides is the main form of control of these insects. In order to develop safer technology, the...

Ozturk, O.; Koklu, S.; Aksoy, E.K., 2015: Hepatitis B resolution after autologous Bone Marrow Transplantation. Acta Gastro-Enterologica Belgica 78(2): 255-255

Chen, S.; Duhamel, J.; Peng, B.; Zaman, M.; Tam, K.C., 2014: Interactions between a series of pyrene end-labeled poly(ethylene oxide)s and sodium dodecyl sulfate in aqueous solution probed by fluorescence. The interactions between a series of poly(ethylene oxide)s covalently labeled at both ends with pyrene pendants (PEO(X)-Py2, where X represents the number-average molecular weight of the PEO chains and equals 2K, 5K, 10K, and 16.5K) and an ionic s...

Emokhonov, V.N.; Groznov, I.N.; Monastirskii, O.A.; Permogorov, A.Y., 1994: Detection of grain infection with specific toxicogenous fungal species. Gas chromatography-mass spectrometric analysis of volatile metabolites. GC-MS was used to analyse headspace samples taken over grain infected by the toxinogenic fungi Aspergillus flavus, Pyricularia oryzae [Magnaporthe grisea], Fusarium macroceras, F. sporotrichiella [F. sporotrichioides], F. graminearum [Gibberella z...

Devlin, S.; Nugent, C.; Finlay, D., 2005: Lifestyle support through efficient ECG acquisition and analysis. People are becoming more aware of their health and the lifestyles they live. As people use computers more and more in a wide variety of occupations, they would find it desirable to monitor their lifestyle without having to leave their desk. Throug...