{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T11:15:35Z","timestamp":1790248535840,"version":"4.1.0"},"reference-count":64,"publisher":"Akademiai Kiado Zrt.","issue":"1","content-domain":{"domain":["akjournals.com"],"crossmark-restriction":true},"short-container-title":["AMicr"],"published-print":{"date-parts":[[2018,9,11]]},"abstract":"<jats:p>\n          <jats:italic>Shigella<\/jats:italic> spp. are a major cause of bacillary dysentery, particularly among children in developing countries such as Iran. This study aimed to investigate the presence of two important <jats:italic>Shigella<\/jats:italic> enterotoxins (ShET-1 and ShET-2), encoded by the <jats:italic>set<\/jats:italic> and <jats:italic>sen<\/jats:italic> genes, respectively, by polymerase chain reaction (PCR) assay among <jats:italic>Shigella<\/jats:italic> species isolated from children affected by shigellosis in Ahvaz, southwest of Iran. In this cross-sectional study, from June 2016 to April 2017, altogether 117 <jats:italic>Shigella<\/jats:italic> isolates were collected from fecal specimens of children aged &lt;15\u00a0years with diarrhea in Ahvaz, southwest Iran. All isolates were identified by standard microbiological and molecular methods. The presence of enterotoxin genes was determined by PCR. The most prevalent isolate was <jats:italic>Shigella flexneri<\/jats:italic> (47.9%), followed by <jats:italic>Shigella sonnei<\/jats:italic> (41%) and <jats:italic>Shigella boydii<\/jats:italic> (11.1%), respectively. <jats:italic>Shigella dysenteriae<\/jats:italic> was not detected in patients\u2019 samples. The frequencies of <jats:italic>set1A, set1B<\/jats:italic>, and <jats:italic>sen<\/jats:italic> genes were 5.1% (6\/117), 15.4% (18\/117), and 76.9% (90\/117), respectively. This study provides initial background on the prevalence and distribution of the <jats:italic>Shigella<\/jats:italic> enterotoxin genes in <jats:italic>Shigella<\/jats:italic> isolates in southwest of Iran. In addition, this study revealed a high prevalence of <jats:italic>sen<\/jats:italic> enterotoxin gene in <jats:italic>Shigella<\/jats:italic> species.<\/jats:p>","DOI":"10.1556\/030.65.2018.037","type":"journal-article","created":{"date-parts":[[2018,10,5]],"date-time":"2018-10-05T12:04:11Z","timestamp":1538741051000},"page":"91-101","update-policy":"https:\/\/doi.org\/10.1556\/policypage.crossmark.crossref.1","source":"Crossref","is-referenced-by-count":14,"title":["Prevalence of enterotoxin-encoding genes among diverse Shigella strains isolated from patients with diarrhea, southwest Iran"],"prefix":"10.1556","volume":"66","author":[{"given":"Mojtaba","family":"Moosavian","sequence":"first","affiliation":[{"name":"1 Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"},{"name":"2 Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sakineh","family":"Seyed-Mohammadi","sequence":"additional","affiliation":[{"name":"2 Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"},{"name":"3 Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmad Farajzadeh","family":"Sheikh","sequence":"additional","affiliation":[{"name":"1 Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"},{"name":"2 Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saeed","family":"Khoshnood","sequence":"additional","affiliation":[{"name":"2 Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"},{"name":"3 Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aram Asarehzadegan","family":"Dezfuli","sequence":"additional","affiliation":[{"name":"2 Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Morteza","family":"Saki","sequence":"additional","affiliation":[{"name":"2 Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"},{"name":"3 Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gholamreza","family":"Ghaderian","sequence":"additional","affiliation":[{"name":"2 Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fatemeh","family":"Shahi","sequence":"additional","affiliation":[{"name":"2 Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"},{"name":"3 Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mahtab","family":"Abdi","sequence":"additional","affiliation":[{"name":"2 Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fariba","family":"Abbasi","sequence":"additional","affiliation":[{"name":"4 Department of Laboratory Sciences, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"425","reference":[{"key":"ref81","doi-asserted-by":"crossref","first-page":"e0156020","DOI":"10.1371\/journal.pone.0156020","article-title":"Molecular characterization of Shigella sonnei: An increasingly prevalent etiologic agent of shigellosis in Guizhou Province, Southwest of China","volume":"11","author":"Li","year":"2016","journal-title":"PLoS One"},{"key":"ref321","first-page":"426","article-title":"Increased isolation and characterization of Shigella sonnei obtained from hospitalized children in Tehran, Iran","volume":"26","author":"Ranjbar","year":"2008","journal-title":"J Health Popul Nutr"},{"key":"ref521","first-page":"118","article-title":"Prevalence of Shigella species and their antimicrobial resistance patterns at Amirkola Children Hospital, North of Iran","volume":"17","author":"Savadkoohi","year":"2007","journal-title":"Iran J Pediatr"},{"key":"ref271","first-page":"103","article-title":"Prevalence of 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