Importance of Staphylococcus aureus in bovine subclinical mastitis: presence of enterotoxins, shock syndrome toxin and relationship with somatic cell count
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Brazilian Journal of Veterinary Research and Animal Science |
Texto Completo: | https://www.revistas.usp.br/bjvras/article/view/6294 |
Resumo: | Staphylococcus aureus is one of the major agents of contagious mastitis and has high incidence worldwide in most of dairy herds. Besides the economic impact, the public health aspects of the enterotoxins and the toxic shock syndrome toxin are very important. The enterotoxin A is frequently correlated with food related illness in man and can be associated with raw, pasteurized and other milk products. The toxic shock syndrome is caused most frequently by toxic shock syndrome toxin, but enterotoxins B and C also can be implicated. The aim of this study was to verify the occurrence of Staphylococcus aureus enterotoxins and toxic shock syndrome toxin producers. Milk samples from cows with clinical and subclinical mastitis were collected. The results of toxins research by "celofane over agar" to TNAase and by commercial kit to enterotoxins were associated with the electronic somatic cell count. Total of 209 milk samples from cows with clinical and subclinical mastitis caused by S.aureus were verified. A total of 209 (98.86%) were TNAase producers, nine samples (4.39%) were enterotoxin producers, and one of them (0.49%) was EED producer, three (1.46%) EEC producers and three (1.46%) EEB producers. The toxic shock syndrome toxin was not identified in any of the samples assayed on this study. There was no statistical correlation between the somatic cell count results and the samples with toxin production. |
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Brazilian Journal of Veterinary Research and Animal Science |
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Importance of Staphylococcus aureus in bovine subclinical mastitis: presence of enterotoxins, shock syndrome toxin and relationship with somatic cell countImportância do Staphylococcus aureus nas mastites subclínicas: pesquisa de enterotoxinas e toxina do choque tóxico, e a relação com a contagem de células somáticasMastiteSubclinicaBovinoStaphylococcus aureusEnterotoxinasMastitisSubclinicBovineStaphylococcus aureusEnterotoxinsStaphylococcus aureus is one of the major agents of contagious mastitis and has high incidence worldwide in most of dairy herds. Besides the economic impact, the public health aspects of the enterotoxins and the toxic shock syndrome toxin are very important. The enterotoxin A is frequently correlated with food related illness in man and can be associated with raw, pasteurized and other milk products. The toxic shock syndrome is caused most frequently by toxic shock syndrome toxin, but enterotoxins B and C also can be implicated. The aim of this study was to verify the occurrence of Staphylococcus aureus enterotoxins and toxic shock syndrome toxin producers. Milk samples from cows with clinical and subclinical mastitis were collected. The results of toxins research by "celofane over agar" to TNAase and by commercial kit to enterotoxins were associated with the electronic somatic cell count. Total of 209 milk samples from cows with clinical and subclinical mastitis caused by S.aureus were verified. A total of 209 (98.86%) were TNAase producers, nine samples (4.39%) were enterotoxin producers, and one of them (0.49%) was EED producer, three (1.46%) EEC producers and three (1.46%) EEB producers. The toxic shock syndrome toxin was not identified in any of the samples assayed on this study. There was no statistical correlation between the somatic cell count results and the samples with toxin production.O Staphylococcus aureus é um dos principais agentes das mastites consideradas contagiosas, apresentando elevada incidência na maioria dos rebanhos leiteiros em vários países. Além de perdas econômicas é importante salientar o aspecto de saúde pública para cepas produtoras de enterotoxinas e da toxina do choque tóxico. A enterotoxina A, relacionada com maior ênfase nos casos de toxinfecções alimentares, pode ser veiculada pelo leite cru, pasteurizado e subprodutos lácteos. A síndrome do choque tóxico é determinada mais freqüentemente pela toxina do choque tóxico, porém as enterotoxinas do tipo B e C também podem ser implicadas. O objetivo deste estudo foi verificar a ocorrência de S.aureus produtores de enteroxinas e da toxina do choque tóxico em amostras de leite de animais com mastite subclínica, e correlacionar estes resultados com a contagem de células somáticas; utilizando a técnica de "celofane over agar" para detecção da TNAase, kit comercial para identificação das enterotxinas e contagem eletrônica de células somáticas. Avaliod]MORENO, B.[u-se 209 amostras de leite oriundas de vacas com mastite subclínica por S.aureus, e dentre estas, 209 (98,86%) produziram TNAse, nove amostras (4,39%) foram produtoras de enterotoxinas, sendo que uma (0,49%) dentre elas foi produtora de EED, três (1,46%) de EEC, e três (1,46%) de EEB. Em uma amostra (0,49%), detectou-se concomitantemente EEA e EEB e em outra EEB e EEC. A toxina do choque tóxico não foi encontrada nas cepas avaliadas neste estudo, assim como não houve aumento estatisticamente significativo, na contagem de células somáticas, das amostras de cepas produtoras de enteroxinas.Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia2004-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjvras/article/view/629410.1590/S1413-95962004000500005Brazilian Journal of Veterinary Research and Animal Science; Vol. 41 Núm. 5 (2004); 321-326 Brazilian Journal of Veterinary Research and Animal Science; Vol. 41 No. 5 (2004); 321-326 Brazilian Journal of Veterinary Research and Animal Science; v. 41 n. 5 (2004); 321-326 Brazilian Journal of Veterinary Research and Animal Science; V. 41 N. 5 (2004); 321-326 1678-44561413-9596reponame:Brazilian Journal of Veterinary Research and Animal Scienceinstname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)instacron:USPporhttps://www.revistas.usp.br/bjvras/article/view/6294/7825Sá, Marcos Eielson Pinheiro deCunha, Maria de Lourdes Ribeiro de Souza daElias, Acacia OriethVictória, CassianoLangoni, Helioinfo:eu-repo/semantics/openAccess2020-06-23T04:29:04Zoai:revistas.usp.br:article/6294Revistahttps://www.revistas.usp.br/bjvrasPUBhttps://www.revistas.usp.br/bjvras/oaibjvras@usp.br1413-95961413-9596opendoar:https://www.revistas.usp.br/bjvras/index2023-01-12T16:42:36.057054Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)false |
dc.title.none.fl_str_mv |
Importance of Staphylococcus aureus in bovine subclinical mastitis: presence of enterotoxins, shock syndrome toxin and relationship with somatic cell count Importância do Staphylococcus aureus nas mastites subclínicas: pesquisa de enterotoxinas e toxina do choque tóxico, e a relação com a contagem de células somáticas |
title |
Importance of Staphylococcus aureus in bovine subclinical mastitis: presence of enterotoxins, shock syndrome toxin and relationship with somatic cell count |
spellingShingle |
Importance of Staphylococcus aureus in bovine subclinical mastitis: presence of enterotoxins, shock syndrome toxin and relationship with somatic cell count Sá, Marcos Eielson Pinheiro de Mastite Subclinica Bovino Staphylococcus aureus Enterotoxinas Mastitis Subclinic Bovine Staphylococcus aureus Enterotoxins |
title_short |
Importance of Staphylococcus aureus in bovine subclinical mastitis: presence of enterotoxins, shock syndrome toxin and relationship with somatic cell count |
title_full |
Importance of Staphylococcus aureus in bovine subclinical mastitis: presence of enterotoxins, shock syndrome toxin and relationship with somatic cell count |
title_fullStr |
Importance of Staphylococcus aureus in bovine subclinical mastitis: presence of enterotoxins, shock syndrome toxin and relationship with somatic cell count |
title_full_unstemmed |
Importance of Staphylococcus aureus in bovine subclinical mastitis: presence of enterotoxins, shock syndrome toxin and relationship with somatic cell count |
title_sort |
Importance of Staphylococcus aureus in bovine subclinical mastitis: presence of enterotoxins, shock syndrome toxin and relationship with somatic cell count |
author |
Sá, Marcos Eielson Pinheiro de |
author_facet |
Sá, Marcos Eielson Pinheiro de Cunha, Maria de Lourdes Ribeiro de Souza da Elias, Acacia Orieth Victória, Cassiano Langoni, Helio |
author_role |
author |
author2 |
Cunha, Maria de Lourdes Ribeiro de Souza da Elias, Acacia Orieth Victória, Cassiano Langoni, Helio |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Sá, Marcos Eielson Pinheiro de Cunha, Maria de Lourdes Ribeiro de Souza da Elias, Acacia Orieth Victória, Cassiano Langoni, Helio |
dc.subject.por.fl_str_mv |
Mastite Subclinica Bovino Staphylococcus aureus Enterotoxinas Mastitis Subclinic Bovine Staphylococcus aureus Enterotoxins |
topic |
Mastite Subclinica Bovino Staphylococcus aureus Enterotoxinas Mastitis Subclinic Bovine Staphylococcus aureus Enterotoxins |
description |
Staphylococcus aureus is one of the major agents of contagious mastitis and has high incidence worldwide in most of dairy herds. Besides the economic impact, the public health aspects of the enterotoxins and the toxic shock syndrome toxin are very important. The enterotoxin A is frequently correlated with food related illness in man and can be associated with raw, pasteurized and other milk products. The toxic shock syndrome is caused most frequently by toxic shock syndrome toxin, but enterotoxins B and C also can be implicated. The aim of this study was to verify the occurrence of Staphylococcus aureus enterotoxins and toxic shock syndrome toxin producers. Milk samples from cows with clinical and subclinical mastitis were collected. The results of toxins research by "celofane over agar" to TNAase and by commercial kit to enterotoxins were associated with the electronic somatic cell count. Total of 209 milk samples from cows with clinical and subclinical mastitis caused by S.aureus were verified. A total of 209 (98.86%) were TNAase producers, nine samples (4.39%) were enterotoxin producers, and one of them (0.49%) was EED producer, three (1.46%) EEC producers and three (1.46%) EEB producers. The toxic shock syndrome toxin was not identified in any of the samples assayed on this study. There was no statistical correlation between the somatic cell count results and the samples with toxin production. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/bjvras/article/view/6294 10.1590/S1413-95962004000500005 |
url |
https://www.revistas.usp.br/bjvras/article/view/6294 |
identifier_str_mv |
10.1590/S1413-95962004000500005 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/bjvras/article/view/6294/7825 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia |
publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia |
dc.source.none.fl_str_mv |
Brazilian Journal of Veterinary Research and Animal Science; Vol. 41 Núm. 5 (2004); 321-326 Brazilian Journal of Veterinary Research and Animal Science; Vol. 41 No. 5 (2004); 321-326 Brazilian Journal of Veterinary Research and Animal Science; v. 41 n. 5 (2004); 321-326 Brazilian Journal of Veterinary Research and Animal Science; V. 41 N. 5 (2004); 321-326 1678-4456 1413-9596 reponame:Brazilian Journal of Veterinary Research and Animal Science instname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP) instacron:USP |
instname_str |
Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Brazilian Journal of Veterinary Research and Animal Science |
collection |
Brazilian Journal of Veterinary Research and Animal Science |
repository.name.fl_str_mv |
Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP) |
repository.mail.fl_str_mv |
bjvras@usp.br |
_version_ |
1797051556387880960 |