Clostridioides difficile ribotypes 001 and 126 were predominant in Tehran healthcare settings from 2004 to 2018: a 14-year-long cross-sectional study
Clostridioides difficile infection (CDI) remains a major healthcare problem worldwide, however, little is known about CDI epidemiology in Iran. Between December 2004 and November 2018, 3649 stool samples were collected from patients in 69 hospitals and medical centres in Tehran and were cultured for...
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Taylor & Francis Group
2020-01-01
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| Series: | Emerging Microbes and Infections |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/22221751.2020.1780949 |
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| author | Masoumeh Azimirad Marcela Krutova Abbas Yadegar Shabnam Shahrokh Meysam Olfatifar Hamid Asadzadeh Aghdaei Warren N. Fawley Mark H. Wilcox Mohammad Reza Zali |
| author_facet | Masoumeh Azimirad Marcela Krutova Abbas Yadegar Shabnam Shahrokh Meysam Olfatifar Hamid Asadzadeh Aghdaei Warren N. Fawley Mark H. Wilcox Mohammad Reza Zali |
| author_sort | Masoumeh Azimirad |
| collection | DOAJ |
| description | Clostridioides difficile infection (CDI) remains a major healthcare problem worldwide, however, little is known about CDI epidemiology in Iran. Between December 2004 and November 2018, 3649 stool samples were collected from patients in 69 hospitals and medical centres in Tehran and were cultured for the presence of C. difficile; isolates were characterized by PCR ribotyping and toxin genes detection. A total of 582 C. difficile isolates were obtained and the overall CDI prevalence was 15.9%; 290 (49.8%) cases were healthcare-associated (HA) and 292 (50.2%) cases were community-associated (CA). Of these, DNA of 513 isolates submitted for ribotyping. The ribotype and/or WEBRIBO type could be assessed in 366 (62.9%) isolates. The most frequent RTs were 001 (n = 75, 12.9%), 126 (n = 65, 11.2%) and 084 (n = 19, 3.3%); the toxin gene profile tcdA+B+/cdtA+B+ (n = 112, 19.2%) was the most common. Fifteen C. difficile isolates (2.6%) did not carry any toxin genes. There was no difference between frequently found RTs in HA-CDI and CA-CDI, except for RT 029 which was more likely to be associated with healthcare origin (12/15, p-value = 0.02). No isolate of RTs 027 or 078 was identified. Importantly, RTs 031, 038, 039, 084, 085 reported previously as RTs with an absence of toxin genes, revealed the presence of toxin genes in our study. Using Simpson’s reciprocal index of diversity, we found that RT diversity decreased as the prevalence of the RT 084 increased (R = −0.78, p-value = 0.041). Different patterns in CDI epidemiology underscore the importance of local surveillance and infection control measures in Tehran healthcare settings. |
| format | Article |
| id | doaj-art-3528fa5db9f442cebba5f17bfb3c750e |
| institution | OA Journals |
| issn | 2222-1751 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Taylor & Francis Group |
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| series | Emerging Microbes and Infections |
| spelling | doaj-art-3528fa5db9f442cebba5f17bfb3c750e2025-08-20T02:16:11ZengTaylor & Francis GroupEmerging Microbes and Infections2222-17512020-01-01911432144310.1080/22221751.2020.1780949Clostridioides difficile ribotypes 001 and 126 were predominant in Tehran healthcare settings from 2004 to 2018: a 14-year-long cross-sectional studyMasoumeh Azimirad0Marcela Krutova1Abbas Yadegar2Shabnam Shahrokh3Meysam Olfatifar4Hamid Asadzadeh Aghdaei5Warren N. Fawley6Mark H. Wilcox7Mohammad Reza Zali8Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, IranDepartment of Medical Microbiology, Charles University, 2nd Faculty of Medicine and Motol University Hospital, Prague, Czech RepublicFoodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, IranGastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, IranGastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, IranBasic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, IranEuropean Society of Clinical Microbiology and Infectious Diseases (ESCMID) Study Group for Clostridioides Difficile (ESGCD)European Society of Clinical Microbiology and Infectious Diseases (ESCMID) Study Group for Clostridioides Difficile (ESGCD)Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, IranClostridioides difficile infection (CDI) remains a major healthcare problem worldwide, however, little is known about CDI epidemiology in Iran. Between December 2004 and November 2018, 3649 stool samples were collected from patients in 69 hospitals and medical centres in Tehran and were cultured for the presence of C. difficile; isolates were characterized by PCR ribotyping and toxin genes detection. A total of 582 C. difficile isolates were obtained and the overall CDI prevalence was 15.9%; 290 (49.8%) cases were healthcare-associated (HA) and 292 (50.2%) cases were community-associated (CA). Of these, DNA of 513 isolates submitted for ribotyping. The ribotype and/or WEBRIBO type could be assessed in 366 (62.9%) isolates. The most frequent RTs were 001 (n = 75, 12.9%), 126 (n = 65, 11.2%) and 084 (n = 19, 3.3%); the toxin gene profile tcdA+B+/cdtA+B+ (n = 112, 19.2%) was the most common. Fifteen C. difficile isolates (2.6%) did not carry any toxin genes. There was no difference between frequently found RTs in HA-CDI and CA-CDI, except for RT 029 which was more likely to be associated with healthcare origin (12/15, p-value = 0.02). No isolate of RTs 027 or 078 was identified. Importantly, RTs 031, 038, 039, 084, 085 reported previously as RTs with an absence of toxin genes, revealed the presence of toxin genes in our study. Using Simpson’s reciprocal index of diversity, we found that RT diversity decreased as the prevalence of the RT 084 increased (R = −0.78, p-value = 0.041). Different patterns in CDI epidemiology underscore the importance of local surveillance and infection control measures in Tehran healthcare settings.https://www.tandfonline.com/doi/10.1080/22221751.2020.1780949Clostridioides difficileribotypingIranCDIepidemiologyclinical features |
| spellingShingle | Masoumeh Azimirad Marcela Krutova Abbas Yadegar Shabnam Shahrokh Meysam Olfatifar Hamid Asadzadeh Aghdaei Warren N. Fawley Mark H. Wilcox Mohammad Reza Zali Clostridioides difficile ribotypes 001 and 126 were predominant in Tehran healthcare settings from 2004 to 2018: a 14-year-long cross-sectional study Emerging Microbes and Infections Clostridioides difficile ribotyping Iran CDI epidemiology clinical features |
| title | Clostridioides difficile ribotypes 001 and 126 were predominant in Tehran healthcare settings from 2004 to 2018: a 14-year-long cross-sectional study |
| title_full | Clostridioides difficile ribotypes 001 and 126 were predominant in Tehran healthcare settings from 2004 to 2018: a 14-year-long cross-sectional study |
| title_fullStr | Clostridioides difficile ribotypes 001 and 126 were predominant in Tehran healthcare settings from 2004 to 2018: a 14-year-long cross-sectional study |
| title_full_unstemmed | Clostridioides difficile ribotypes 001 and 126 were predominant in Tehran healthcare settings from 2004 to 2018: a 14-year-long cross-sectional study |
| title_short | Clostridioides difficile ribotypes 001 and 126 were predominant in Tehran healthcare settings from 2004 to 2018: a 14-year-long cross-sectional study |
| title_sort | clostridioides difficile ribotypes 001 and 126 were predominant in tehran healthcare settings from 2004 to 2018 a 14 year long cross sectional study |
| topic | Clostridioides difficile ribotyping Iran CDI epidemiology clinical features |
| url | https://www.tandfonline.com/doi/10.1080/22221751.2020.1780949 |
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