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Boncompagni SR, Micieli M, Di Maggio T, Mantella A, Villagrán AL, Briggesth Miranda T, Revollo C, Poma V, Gamboa H, Spinicci M, Strohmeyer M, Bartoloni A, Rossolini GM, Pallecchi L. Relevant increase of CTX-M-producing Escherichia coli carriage in school-aged children from rural areas of the Bolivian Chaco in a three-year period. Int J Infect Dis 2022; 121:126-129. [PMID: 35568364 DOI: 10.1016/j.ijid.2022.05.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/06/2022] [Accepted: 05/08/2022] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES The aim of this study was to perform two cross-sectional surveys on the fecal carriage of CTX-M-producing Enterobacterales in school-aged children from rural areas of the Bolivian Chaco (2016 vs 2019). METHODS A total of 757 fecal samples were collected from school-aged children living in nine indigenous communities (n=337, 2016; n=420, 2019). After a first passage onto MacConkey agar (MCA), samples were plated onto MCA plus cefotaxime 2 µg/mL (MCA-CTX), and a loopful of the bacterial growth was used as a template for the detection of group 1, 2, 8/25, and 9 blaCTX-M variants by multiplex reverse transcriptase polymerase chain reaction . Positive samples were tested again for detecting, identifying, and characterizing CTX-M-positive isolates. RESULTS Growth onto MCA-CTX was obtained with 208 samples (27.5%; 62/337, 2016; 146/420, 2019), of which 201 (96.6%) were positive for blaCTX-M genes. Overall, a relevant increase of fecal carriage of CTX-M-producing Enterobacterales was observed in the study period: 17,5% (59/337) in 2016 compared with 33,8% (142/420) in 2019, p<0.01. Nonetheless, the relative group distribution of CTX-M groups remained stable, with group 1 being the prevalent, followed by group 9 and group 8/25. Group 2 was not detected. CONCLUSIONS The present study demonstrated an alarming spread of CTX-M enzymes in rural areas of the Bolivian Chaco, where antibiotics consumption is limited. Further studies are encouraged to better understand the dissemination dynamics of such relevant resistance determinants.
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Affiliation(s)
- Selene Rebecca Boncompagni
- Department of Medical Biotechnologies, University of Siena, Santa Maria alle Scotte University Hospital, Siena, Italy
| | - Maria Micieli
- Department of Experimental and Clinical Medicine, University of Florence, Careggi University Hospital, Florence, Italy
| | - Tiziana Di Maggio
- Department of Medical Biotechnologies, University of Siena, Santa Maria alle Scotte University Hospital, Siena, Italy
| | - Antonia Mantella
- Department of Experimental and Clinical Medicine, University of Florence, Careggi University Hospital, Florence, Italy
| | - Anna Liz Villagrán
- Hospital Básico Villa Montes, Villa Montes, Plurinational State of Bolivia
| | | | - Carmen Revollo
- Instituto Nacional de Laboratorios de Salud (INLASA), La Paz, Plurinational State of Bolivia
| | - Veronica Poma
- Escuela de Salud del Chaco Tekove Katu, Gutierrez, Plurinational State of Bolivia
| | - Herlan Gamboa
- Facultad Integral del Chaco, Universidad Autónoma Gabriel René Moreno, Camiri, Plurinational State of Bolivia
| | - Michele Spinicci
- Department of Experimental and Clinical Medicine, University of Florence, Careggi University Hospital, Florence, Italy; Infectious and Tropical Diseases Unit, Careggi University Hospital, Florence, Italy
| | - Marianne Strohmeyer
- Department of Experimental and Clinical Medicine, University of Florence, Careggi University Hospital, Florence, Italy
| | - Alessandro Bartoloni
- Department of Experimental and Clinical Medicine, University of Florence, Careggi University Hospital, Florence, Italy; Infectious and Tropical Diseases Unit, Careggi University Hospital, Florence, Italy
| | - Gian Maria Rossolini
- Department of Experimental and Clinical Medicine, University of Florence, Careggi University Hospital, Florence, Italy; Clinical Microbiology and Virology Unit, Careggi University Hospital, Florence, Italy
| | - Lucia Pallecchi
- Department of Medical Biotechnologies, University of Siena, Santa Maria alle Scotte University Hospital, Siena, Italy.
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Porto AN, Cortelli SC, Borges AH, Matos FZ, Aquino DR, Miranda TB, Oliveira Costa F, Aranha AF, Cortelli JR. Oral and endotracheal tubes colonization by periodontal bacteria: a case-control ICU study. Eur J Clin Microbiol Infect Dis 2016; 35:343-51. [PMID: 26810057 DOI: 10.1007/s10096-015-2518-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 10/30/2015] [Indexed: 10/22/2022]
Abstract
Periodontal infection is a possible risk factor for respiratory disorders; however, no studies have assessed the colonization of periodontal pathogens in endotracheal tubes (ET). This case-control study analyzed whether periodontal pathogens are able to colonize ET of dentate and edentulous patients in intensive care units (ICU) and whether oral and ET periodontal pathogen profiles have any correlation between these patients. We selected 18 dentate and 18 edentulous patients from 78 eligible ICU patients. Oral clinical examination including probing depth, clinical attachment level, gingival index , and plaque index was performed by a single examiner, followed by oral and ET sampling and processing by quantitative polymerase chain reaction (total bacterial load, Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, and Tannerella forsythia). Data were statistically analyzed by Mann-Whitney U, two-way analysis of variance (p < 0.05). Among dentate, there was no correlation between clinical parameters and ET bacterial levels. Both dentate and edentulous patients showed similar ET bacterial levels. Dentate patients showed no correlation between oral and ET bacterial levels, while edentulous patients showed positive correlations between oral and ET levels of A. actinomycetemcomitans, P. gingivalis, and T. forsythia. Periodontal pathogens can colonize ET and the oral cavity of ICU patients. Periodontal pathogen profiles tend to be similar between dentate and edentulous ICU patients. In ICU patients, oral cavity represents a source of ET contamination. Although accompanied by higher oral bacterial levels, teeth do not seem to influence ET bacterial profiles.
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Affiliation(s)
- A N Porto
- Dental School, University of Cuiaba, Avenida Beira Rio, Cuiabá, Mato Grosso, 78000, Brazil.
| | - S C Cortelli
- Nucleus of Periodontal Research, Dental School, University of Taubate, São Paulo, Brazil
| | - A H Borges
- Dental School, University of Cuiaba, Avenida Beira Rio, Cuiabá, Mato Grosso, 78000, Brazil
| | - F Z Matos
- Dental School, University of Cuiaba, Avenida Beira Rio, Cuiabá, Mato Grosso, 78000, Brazil
| | - D R Aquino
- Nucleus of Periodontal Research, Dental School, University of Taubate, São Paulo, Brazil
| | - T B Miranda
- Nucleus of Periodontal Research, Dental School, University of Taubate, São Paulo, Brazil
| | - F Oliveira Costa
- Periodontal Department, Dental School, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - A F Aranha
- Dental School, University of Cuiaba, Avenida Beira Rio, Cuiabá, Mato Grosso, 78000, Brazil
| | - J R Cortelli
- Nucleus of Periodontal Research, Dental School, University of Taubate, São Paulo, Brazil
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