Epidemiologic and etiologic characteristics of diarrheagenic Escherichia coli infection in population in Shenzhen / 中华流行病学杂志
Chinese Journal of Epidemiology
;
(12): 115-118, 2016.
Article
Dans Chinois
| WPRIM
| ID: wpr-248719
ABSTRACT
<p><b>OBJECTIVE</b>To understand the epidemiologic and etiologic characteristics of diarrheagenic Escherichia (E.) coli infections in Shenzhen.</p><p><b>METHODS</b>Stool samples were collected from acute diarrheal patients in four sentinel hospitals in Shenzhen and diarrheagenic E. coli strains were isolated and identified with multiplex real-time PCR. Serotyping and pulsed-field gel electrophoresis (PFGE) typing were conducted for the diarrheagenic E. coli isolates.</p><p><b>RESULTS</b>A total of 74 diarrheagenic E. coli strains were isolated from 1 823 stool samples (4.06%). The patients were mainly young children aged <3 years and adults aged 20-39 years, and the infections mainly occurred during May-September of a year. Enterotoxigenic E. coli (ETEC) and enteropathognic E. coli (EPEC) were predominant (45.9% and 31.1%). Serogroups and PFGE patterns varied among the diarrheagenic E. coli isolates. However, serogroup O159 were predominant in ETEC and there were 5 clusters with ≥2 strains sharing same PFGE patterns.</p><p><b>CONCLUSIONS</b>ETEC and EPEC were predominant in diarrheagenic E. coli strains isolated from diarrheal patients in Shenzhen. Age and season specific characteristics of diarrheagenic E. coli infections were observed. The serotypes and PFGE patterns of diarrheagenic E. coli strains varied. Close attention should be paid to the possible ETEC outbreak.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Sérotypie
/
Chine
/
Épidémiologie
/
Épidémies de maladies
/
Classification
/
Électrophorèse en champ pulsé
/
Diarrhée
/
Infections à Escherichia coli
/
Escherichia coli entérotoxigène
/
Réaction de polymérisation en chaine en temps réel
Type d'étude:
Etude d'étiologie
/
Étude pronostique
Limites du sujet:
Adulte
/
Enfant d'âge préscolaire
/
Humains
Pays comme sujet:
Asie
langue:
Chinois
Texte intégral:
Chinese Journal of Epidemiology
Année:
2016
Type:
Article
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