Daniel Fernández Fellenz, Julia M Ruiz, Analía I Etcheverría, Rocio Colello, María V Velez, Marcelo E Sanz, Mónica D Sparo, Sabina Lissarrague, Josefina Pereyra, Gustavo Zanelli, Nora L Padola
{"title":"检测从阿根廷腹泻儿童中分离出的 EPEC 和 STEC 菌株。","authors":"Daniel Fernández Fellenz, Julia M Ruiz, Analía I Etcheverría, Rocio Colello, María V Velez, Marcelo E Sanz, Mónica D Sparo, Sabina Lissarrague, Josefina Pereyra, Gustavo Zanelli, Nora L Padola","doi":"10.1016/j.ram.2024.07.003","DOIUrl":null,"url":null,"abstract":"<p><p>Rectal swabs (122) from pediatric patients were analyzed by polymerase chain reaction (PCR) for the detection of EPEC and STEC. STEC isolates were tested for the presence of stx1, stx2, eae, saa and ehxA. All eae-positive samples were tested for the presence of bfpA, and antigen O was determined using the agglutination test. Int1 and Int2 were detected to identify the presence of integrons class 1 and 2, respectively. Escherichia coli was detected in 68% of the samples, of which 18.8% were STEC (2.45%) and EPEC (16.3%). Serogroups STEC O145 and EPEC O130, O113 and O157 were observed, while three strains were non-typable. None of the EPEC strains carrying tbfpA and class 1 and 2 integrons was detected in any of the samples. The results obtained are important considering the virulence profiles found in the isolated EPEC and STEC strains and the serogroups associated with disease in humans.</p>","PeriodicalId":21163,"journal":{"name":"Revista Argentina de microbiologia","volume":null,"pages":null},"PeriodicalIF":1.8000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Detection of EPEC and STEC strains isolated from children with diarrhea in Argentina.\",\"authors\":\"Daniel Fernández Fellenz, Julia M Ruiz, Analía I Etcheverría, Rocio Colello, María V Velez, Marcelo E Sanz, Mónica D Sparo, Sabina Lissarrague, Josefina Pereyra, Gustavo Zanelli, Nora L Padola\",\"doi\":\"10.1016/j.ram.2024.07.003\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Rectal swabs (122) from pediatric patients were analyzed by polymerase chain reaction (PCR) for the detection of EPEC and STEC. STEC isolates were tested for the presence of stx1, stx2, eae, saa and ehxA. All eae-positive samples were tested for the presence of bfpA, and antigen O was determined using the agglutination test. Int1 and Int2 were detected to identify the presence of integrons class 1 and 2, respectively. Escherichia coli was detected in 68% of the samples, of which 18.8% were STEC (2.45%) and EPEC (16.3%). Serogroups STEC O145 and EPEC O130, O113 and O157 were observed, while three strains were non-typable. None of the EPEC strains carrying tbfpA and class 1 and 2 integrons was detected in any of the samples. The results obtained are important considering the virulence profiles found in the isolated EPEC and STEC strains and the serogroups associated with disease in humans.</p>\",\"PeriodicalId\":21163,\"journal\":{\"name\":\"Revista Argentina de microbiologia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-09-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Revista Argentina de microbiologia\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1016/j.ram.2024.07.003\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Revista Argentina de microbiologia","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1016/j.ram.2024.07.003","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MICROBIOLOGY","Score":null,"Total":0}
Detection of EPEC and STEC strains isolated from children with diarrhea in Argentina.
Rectal swabs (122) from pediatric patients were analyzed by polymerase chain reaction (PCR) for the detection of EPEC and STEC. STEC isolates were tested for the presence of stx1, stx2, eae, saa and ehxA. All eae-positive samples were tested for the presence of bfpA, and antigen O was determined using the agglutination test. Int1 and Int2 were detected to identify the presence of integrons class 1 and 2, respectively. Escherichia coli was detected in 68% of the samples, of which 18.8% were STEC (2.45%) and EPEC (16.3%). Serogroups STEC O145 and EPEC O130, O113 and O157 were observed, while three strains were non-typable. None of the EPEC strains carrying tbfpA and class 1 and 2 integrons was detected in any of the samples. The results obtained are important considering the virulence profiles found in the isolated EPEC and STEC strains and the serogroups associated with disease in humans.
期刊介绍：
La Revista Argentina de Microbiología es una publicación trimestral editada por la Asociación Argentina de Microbiología y destinada a la difusión de trabajos científicos en las distintas áreas de la Microbiología. La Asociación Argentina de Microbiología se reserva los derechos de propiedad y reproducción del material aceptado y publicado.
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