Academic literature on the topic 'Enterotoxigenic S. aureus'

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Journal articles on the topic "Enterotoxigenic S. aureus"

1

ADESIYUN, A. A., L. A. WEBB, and H. T. ROMAIN. "Prevalence and Characteristics of Staphylococcus aureus Strains Isolated from Bulk and Composite Milk and Cattle Handlers." Journal of Food Protection 61, no. 5 (1998): 629–32. http://dx.doi.org/10.4315/0362-028x-61.5.629.

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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 × 103 to 1.2 × 105 CFU/ml compared with mean S. aureus counts in composite milk which ranged from 2.4 × 103 to 3.0 × 104 CFU/ml. Of the 105 strains of S. aureus from bulk milk tested, 45 (42.9%) were enterotoxigenic elabora
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2

HATAKKA, M., K. J. BJÖRKROTH, K. ASPLUND, N. MÄKI-PETÄYS, and H. J. KORKEALA. "Genotypes and Enterotoxicity of Staphylococcus aureus Isolated from the Hands and Nasal Cavities of Flight-Catering Employees." Journal of Food Protection 63, no. 11 (2000): 1487–91. http://dx.doi.org/10.4315/0362-028x-63.11.1487.

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Hand and nasal samples of flight-catering staff were collected from 1995 to 1997 to find employees carrying Staphylococcus aureus. Altogether 153 hand samples and 136 nose samples were taken. Nasal sampling showed a higher prevalence of S. aureus among food handlers (29%) than hand sampling (9%). A high proportion of the strains (46%) were enterotoxigenic, and a considerable amount of food handlers carried enterotoxigenic S. aureus, 6% and 12% according to hand and nasal sampling, respectively. Pulsed-field gel electrophoresis macrorestriction profiles revealed a total of 32 different types as
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3

ADESIYUN, ABIODUN A., IFEDAPO RAJI, and VIVIAN YOBE. "Enterotoxigenicity of Staphylococcus aureus from Anterior Nares of Dining Hall Workers." Journal of Food Protection 49, no. 12 (1986): 955–57. http://dx.doi.org/10.4315/0362-028x-49.12.955.

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The frequency of isolation of enterotoxigenic Staphylococcus aureus in dining hall workers of a Nigerian University was determined. Of a total of 186 workers sampled, 47 (25.3%) were carriers of enterotoxigenic S. aureus in their anterior nares, including 19 (22.4%) of 85 cooks and 11 (23.9%) of 46 stewards. Fifty-five (26.6%) of 207 strains of S. aureus tested produced staphylococcal enterotoxins A (SEA), B (SEB), C (SEC), D (SED) or E (SEE). SEA predominated, with 18 (8.7%) strains elaborating it and representing 32.7% of all enterotoxigenic strains. SEC and SED were produced by 14 (6.8%) an
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4

Avşaroğlu, M. Dilek. "Prevalence of Staphylococcus aureus Isolated From Various Foods of Animal Origin in Kırşehir, Turkey and Their Enterotoxigenicity." Turkish Journal of Agriculture - Food Science and Technology 4, no. 12 (2016): 1179. http://dx.doi.org/10.24925/turjaf.v4i12.1179-1184.961.

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The aim of this study was to detect Staphylococcus aureus contamination to different types of animal origin foods collected in the Kırşehir province of Turkey and to examine their enterotoxin production ability. Out of 120 food samples 38 suspected colonies were obtained and 23 of them were identified as S. aureus by biochemical and molecular analyses. Other species detected were S. chromogenes, S. cohnii ssp. cohnii, S. hominis, S. lentus, S. warneri, and S. xylosus. The isolates were also analysed with regard to carry mecA gene. None of them was found to have mecA gene indicating susceptibil
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5

RIVA, ALESSANDRA, ELISA BORGHI, DANIELA CIRASOLA, et al. "Methicillin-Resistant Staphylococcus aureus in Raw Milk: Prevalence, SCCmec Typing, Enterotoxin Characterization, and Antimicrobial Resistance Patterns." Journal of Food Protection 78, no. 6 (2015): 1142–46. http://dx.doi.org/10.4315/0362-028x.jfp-14-531.

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Staphylococcus aureus is a known major cause of foodborne illnesses, and raw milk and dairy products are often contaminated by enterotoxigenic and antimicrobial-resistant S. aureus strains. In the present study, 35 S. aureus strains were isolated from 383 raw milk samples collected from various dairy herds in the province of Milan (northern Italy). The isolates were characterized based on their antimicrobial susceptibility patterns and the presence of genes encoding staphylococcal enterotoxins (sea, seb, sec, sed, and see). About half (45.7%) of the strains were enterotoxigenic, and 37.1% were
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6

TSEGMED, URANCHIMEG, GIOVANNI NORMANNO, MARIT PRINGLE, and KAREL KROVACEK. "Occurrence of Enterotoxic Staphylococcus aureus in Raw Milk from Yaks and Cattle in Mongolia." Journal of Food Protection 70, no. 7 (2007): 1726–29. http://dx.doi.org/10.4315/0362-028x-70.7.1726.

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Staphylococcal food poisoning is considered one of the leading foodborne illnesses in humans worldwide and is associated with contaminated foods of animal origin, such as milk and dairy products. In this study, we investigated the occurrence of staphylococci and the enterotoxigenic properties of Staphylococcus aureus isolated from raw milk from yaks (Bos mutus) and cattle in Mongolia. Staphylococci were isolated from 72 (74%) of the 97 raw milk samples. Of the samples containing staphylococci, 69% (50 of 72) were from yaks and 30.5% (22 of 72) were from cattle. S. aureus was detected in 10% of
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7

Boynukara, Banur, Timur Gulhan, Kemal Gurturk, Mustafa Alisarli, and Erdal Ogun. "Evolution of slime production by coagulase-negative staphylococci and enterotoxigenic characteristics of Staphylococcus aureus strains isolated from various human clinical specimens." Journal of Medical Microbiology 56, no. 10 (2007): 1296–300. http://dx.doi.org/10.1099/jmm.0.47140-0.

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The present study was designed to determine the slime production of coagulase-negative staphylococci (CoNS) and the enterotoxigenic properties of Staphylococcus aureus strains, and to evaluate the clinical importance of slime-producing CoNS and enterotoxigenic S. aureus strains isolated from various human clinical specimens. For this purpose, a total of 120 Staphylococcus strains were isolated and identified, and further characterized for their slime production and enterotoxigenicity. Of the clinical isolates, 55 (45.8 %) were found to be S. aureus, and the others (54.2 %) were identified as C
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8

NÁJERA-SÁNCHEZ, GABRIELA, ROGELIO MALDONADO-RODRÍGUEZ, PATRICIA RUÍZ OLVERA, and LYDIA MOTA de la GARZA. "Development of Two Multiplex Polymerase Chain Reactions for the Detection of Enterotoxigenic Strains of Staphylococcus aureus Isolated from Foods." Journal of Food Protection 66, no. 6 (2003): 1055–62. http://dx.doi.org/10.4315/0362-028x-66.6.1055.

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Two multiplex polymerase chain reactions were developed for the detection of enterotoxigenic strains of Staphylococcus aureus: one multiplex reaction for the simultaneous detection of enterotoxigenic strains type A (entA), type B (entB), and type E (entE) and another for the simultaneous detection of enterotoxigenic strains type C (entC) and type D (entD). Both reactions were standardized with the use of the reference enterotoxigenic strains of S. aureus: FRI 722, producer of staphylococcal enterotoxin (SE) type A (SEA); FRI 1007, producer of SEB; FRI 137, producer of SEC1; FRI 472, producer o
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9

Badawy, Basma, Mahmoud Elafify, Alshimaa M. M. Farag, et al. "Ecological Distribution of Virulent Multidrug-Resistant Staphylococcus aureus in Livestock, Environment, and Dairy Products." Antibiotics 11, no. 11 (2022): 1651. http://dx.doi.org/10.3390/antibiotics11111651.

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Staphylococcus aureus is one of the most common causes of mastitis, leading to severe economic losses in the dairy industry. It is also zoonotic, with potential risks to public health. This study aimed to detect the occurrence of S. aureus-resistant strains isolated from cattle, buffalo, their environment, milk and dairy products; and to investigate the extent of animal, ecological, and food contamination by methicillin-resistant (MRSA) or enterotoxigenic S. aureus. Samples (n = 350) were collected from four animal (two cattle and two buffalo) farms, i.e., their environment. Thirty Karish chee
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10

TAMARAPU, SUDHIR, JOHN L. McKILLIP, and MARYANNE DRAKE. "Development of a Multiplex Polymerase Chain Reaction Assay for Detection and Differentiation of Staphylococcus aureus in Dairy Products†." Journal of Food Protection 64, no. 5 (2001): 664–68. http://dx.doi.org/10.4315/0362-028x-64.5.664.

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A multiplex polymerase chain reaction (PCR) assay was developed for the detection and differentiation of enterotoxigenic Staphylococcus aureus in dairy products. A solvent extraction procedure was successfully modified for extraction of S. aureus DNA from 10 ml of artificially contaminated skim milk or 20 g cheddar cheese. Primers targeting the enterotoxin C gene (entC) and thermostable nuclease gene (nuc) were used in the multiplex PCR. PCR products were confirmed using restriction fragment length polymorphism analysis. DNA was consistently quantified and amplified by uniplex PCR from 10 CFU/
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