A study of the enterotoxigenicity of coagulase-negative and coagulase-positive staphylococcal isolates from food poisoning outbreaks in Minas Gerais, Brazil

Veras, Jamaira Fereira; Carmo, Luiz Simeão do; Tong, Lawrence; Shupp, Jeffrey W.; Cummings, Christiano; Santos, Deise Aparecida dos; Cerqueira, M.M.O.P.; Cantini, Alvaro; Nicoli, Jacques R.; Jett, Marti

doi:10.1016/j.ijid.2007.09.018

Cited by 121 publications

(94 citation statements)

References 25 publications

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“…Under other circumstances, some species of coagulase-negative staphylococci can present a medical risk. Some coagulase-negative staphylococci (CNS) may behave as opportunistic pathogens, often introduced by medical devices or colonising exposed wounds (Veras et al 2008;Faria et al 2009).…”

Section: Resultsmentioning

confidence: 99%

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Antibiotic resistance of enterococci, coagulase negative staphylococci and Staphylococcus aureus isolated from chicken meat

Yurdakul¹,

Erginkaya²,

Ünal³

2013

Czech J. Food Sci.

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Yurdakul N.E., Erginkaya Z., Ünal E. (2013): Antibiotic resistance of enterococci, coagulase negative staphylococci and Staphylococcus aureus isolated from chicken meat. Czech J. Food Sci., 31: 14-19.We determined the antibiotic resistance of enterococci, coagulase negative staphylococci, and Staphylococcus aureus isolated from chicken meat samples. The antibiotic resistance of the isolated strains was estimated by the KirbyBauer disk diffusion method (according to the NCCLS document M2-A9 suggestions). It was found that all strains of Enterococcus spp. were resistant to tetracycline, 75% of them were resistant to ciprofloxacin, and 50% of them were resistant to erythromycin, vancomycin, and chloramphenicol. Also all strains of S. aureus were resistant to tetracycline and 25% of S. aureus strains were resistant to erythromycin and chloramphenicol, whereas all strains of S. aureus were sensitive to teicoplanin and 25% of them were sensitive to vancomycin and ciprofloxacin. As for the isolate of coagulase negative staphylococci (CNS), 68.1% of them were resistant to erythromycin, 77.2% of them were resistant to tetracycline, 59% of them were resistant to vancomycin, 9% of them were resistant to teicoplanin, and 27.2% of them were resistant to both chloramphenicol and ciprofloxacin. As a result, it was found that most of the strains (all of S. aureus and Enterococcus spp., also 77.2% CNS) were resistant to tetracycline.

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Section: Resultsmentioning

confidence: 99%

“…Even though CNS opportunistic infections are most of the times regarded as being of environmental origin, the distribution and antibiotic resistance patterns of these organisms in the environment are poorly characterised (Veras et al 2008;Faria et al 2009). …”

Section: Antibiotic Resistance Of Coagulase Negative Staphylococcimentioning

confidence: 99%

Antibiotic resistance of enterococci, coagulase negative staphylococci and Staphylococcus aureus isolated from chicken meat

Yurdakul¹,

Erginkaya²,

Ünal³

2013

Czech J. Food Sci.

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“…Staphylococcus are blamed for more than 572 outbreaks from 1999 to 2007 (ANVISA, 2008). Several outbreaks caused by these microorganisms have been reported in the literature (Do Carmo et al, 2002, Colombari et al, 2007Veras et al, 2008), and some of them are linked to dairy products.…”

Section: Resultsmentioning

confidence: 99%

“…Due to this, they have received more attention by both governments and industries when establishing regulations, microbiological specifications, or methods. Despite this, the ability of coagulase negative Staphylococcus (CNS) to produce enterotoxins (VernozyRozand et al, 1996;Udo et al, 1999;Zell et al, 2008) and their association with foodborne disease outbreaks have been reported (Do Carmo et al, 2002;Veras et al, 2008). The presence of CNS in foods is of concern, as they are commonly found in raw material (e.g., as milk) and may be used as starter cultures for production of fermented foods (Zell et al, 2008).…”

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High Incidence of Enterotoxin D ProducingStaphylococcusspp. in Brazilian Cow's Raw Milk and Its Relation with Coagulase and Thermonuclease Enzymes

Oliveira

Padovani

Miya

et al. 2011

Foodborne Pathogens and Disease

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In this study, the enterotoxigenic potential of Staphylococcus strains (n ¼ 574) isolated from raw milk samples (n ¼ 140) was determined for their capacity to produce staphylococcal enterotoxins. In addition, the relationship between the presence of enterotoxins, coagulase, and thermonuclease (Tnase) was assessed. The results showed that 19% of Staphylococcus was enterotoxigenic, being able to produce at least one of the staphylococcal enterotoxins (A, B, C, and D). Most of the strains were able to produce enterotoxin D (68.8%), whereas 12.8% of the Staphylococcus strains were able to produce staphylococcal enterotoxin A. Besides, the production of more than one type of enterotoxins by the same strain was observed. Tnase was considered the best marker for enterotoxigenic potential of isolates, although some of them were negative for coagulase and Tnase but positive for enterotoxin production. Therefore, either the use of Tnase to assess Staphylococcus enterotoxigenic potential or the use of simple and easy screening tests for enterotoxin production should receive more attention when evaluating the pathogenic potential of foodborne Staphylococcus strains. Due to the association of both coagulase positive Staphylococcus and coagulase negative Staphylococcus with foodborne disease outbreaks, regulators and industries should pay more attention to enterotoxigenic Staphylococcus rather than focusing only on S. aureus or coagulase positive Staphylococcus. Finally, data found here suggest a high risk of staphylococcal intoxication with the consumption of raw milk or dairy products made from raw milk.

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“…Entretanto, há relatos da detecção em alimentos, de linhagens de Staphylococcus coagulase negativo produtores de enterotoxinas. (Lamaita et al, 2005;Rapini et al, 2005;Veras et al, 2008).…”

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Identificação de portadores de Staphylococcus enterotoxigênicos e avaliação da sensibilidade a antimicrobianos

Bartels¹,

Andrade²,

Neumann³

et al. 2009

Arq. Bras. Med. Vet. Zootec.

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A study of the enterotoxigenicity of coagulase-negative and coagulase-positive staphylococcal isolates from food poisoning outbreaks in Minas Gerais, Brazil

Cited by 121 publications

References 25 publications

Antibiotic resistance of enterococci, coagulase negative staphylococci and Staphylococcus aureus isolated from chicken meat

Antibiotic resistance of enterococci, coagulase negative staphylococci and Staphylococcus aureus isolated from chicken meat

High Incidence of Enterotoxin D ProducingStaphylococcusspp. in Brazilian Cow's Raw Milk and Its Relation with Coagulase and Thermonuclease Enzymes

Identificação de portadores de Staphylococcus enterotoxigênicos e avaliação da sensibilidade a antimicrobianos

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