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Dynamics of the seasonal airborne propagation of Staphylococcus aureus in academic dental clinics
Bernardo, Wagner Luiz de Carvalho; Silva, Jeferson Júnior da; Höfling, José Francisco; Rosa, Edvaldo Antônio Ribeiro; Boriollo, Marcelo Fabiano Gomes.
  • Bernardo, Wagner Luiz de Carvalho; Universidade Estadual de Campinas. Faculdade de Odontologia de Piracicaba. Departamento de Diagnóstico Oral, Laboratório de Microbiologia e Imunologia. Piracicaba. BR
  • Silva, Jeferson Júnior da; Universidade Estadual de Campinas. Faculdade de Odontologia de Piracicaba. Departamento de Diagnóstico Oral, Laboratório de Microbiologia e Imunologia. Piracicaba. BR
  • Höfling, José Francisco; Universidade Estadual de Campinas. Faculdade de Odontologia de Piracicaba. Departamento de Diagnóstico Oral, Laboratório de Microbiologia e Imunologia. Piracicaba. BR
  • Rosa, Edvaldo Antônio Ribeiro; Universidade Estadual de Campinas. Faculdade de Odontologia de Piracicaba. Departamento de Diagnóstico Oral, Laboratório de Microbiologia e Imunologia. Piracicaba. BR
  • Boriollo, Marcelo Fabiano Gomes; Universidade Estadual de Campinas. Faculdade de Odontologia de Piracicaba. Departamento de Diagnóstico Oral, Laboratório de Microbiologia e Imunologia. Piracicaba. BR
J. appl. oral sci ; 26: e20170141, 2018. graf
Article in English | LILACS, BBO | ID: biblio-893685
ABSTRACT
Abstract Objective Staphylococcus aureus strains can be disseminated during dental treatments and occasionally lead to the contamination and infection of patients and dentists, which is an important public health problem. The dynamics of the airborne propagation and the genetic diversity of S. aureus isolated in an academic dental clinic environment were investigated using isoenzyme typing. Material and Methods The isoenzymes of 44 previously reported isolates were obtained from fresh cultures and extracted using glass beads. Nine isoenzymes were investigated using multilocus enzyme electrophoresis (MLEE). The genetic diversity and relationship among the strains (electrophoretic type - ET) were determined using statistics previously described by Nei25 (1972) and the SAHN grouping method (UPGMA algorithm). Results Clonal pattern analyses indicated a high level of genetic polymorphism occurring among the 33 ETs, which were grouped into five taxa. Each taxon presented one or more clusters that were moderately related and that contained two or more identical/highly related isolates, revealing seasonal airborne propagation in these dental clinic environments. Conclusions These data suggest the occurrence of active microevolutionary processes in S. aureus as well as the possibility of environmental propagation during a 14-month time span. Such findings are important to show that multiuser academic dental clinics can retain certain strains that are spreadable to different niches.
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Full text: Available Index: LILACS (Americas) Main subject: Seasons / Staphylococcus aureus / Dental Clinics Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Campinas/BR

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Full text: Available Index: LILACS (Americas) Main subject: Seasons / Staphylococcus aureus / Dental Clinics Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Campinas/BR