[Analysis on identification and traceability of one non-toxigenic Corynebacterium diphtheriae from a patient with diabetic foot in Hainan province].
Zhonghua Yu Fang Yi Xue Za Zhi
; 56(8): 1107-1111, 2022 Aug 06.
Article
en Zh
| MEDLINE
| ID: mdl-35922239
ABSTRACT
There is a rare case of an elderly diabetic with diabetic foot infection at Hainan General Hospital in September 2021, which was diagnosed as Corynebacterium diphtheriae infection incidentally on routine culture with conventional methods and molecular biological approaches, to aid in diagnosis in clinical practice. Owing to smear staining, Albert staining and VITEK 2 system, automated identification systems viz matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) confirmed combing with 16S ribosomal RNA (16S rRNA) gene has been used for the taxonomic classification of bacteria. Otherwise, toxin gene tox was done for diphtheria toxin synthesis. The isolate was Gram-stain-positive, rod-like arrangement with irregular thickness, with characteristic metachromatic granules, ferment most sugars and homology of 16S rRNA analyses with C. diphtheriae NCTC11397T (MW682323.1) was greater than a 100% possibility, toxin gene tox was negative. The findings lay the foundation to clinical identify and trace of non-toxigenic C. diphtheriae. Moreover, this work provides insights into the non-toxigenic C.diphtheriae that contribute to recognized risk of non-toxigenic C.diphtheriae infections.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Pie Diabético
/
Corynebacterium diphtheriae
/
Diabetes Mellitus
/
Difteria
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Aged
/
Humans
Idioma:
Zh
Revista:
Zhonghua Yu Fang Yi Xue Za Zhi
Año:
2022
Tipo del documento:
Article
País de afiliación:
China