Results: The results showed that as many as 43 50% of all samples examined were new types with the same allele profile, namely 9-1-13-4-3-3-4.
📌 3 Key Takeaways
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Objective & Hypothesis:Background/aim: The aim of this study was to find out characteristics and patterns of the spread of Corynebacterium diphtheriaeisolated from Jakarta and the surrounding areas, using the whole genome sequencing WGS technique and multilocus sequence typing MLST approach.Materials and methods: The study samples consisted of 86 C. diphtheriae isolates, which were isolated from diphtheria patients and close contacts of patients.
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Key Findings & Data:Results: The results showed that as many as 43 50% of all samples examined were new types with the same allele profile, namely 9-1-13-4-3-3-4.
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Conclusion & Impact:The tox gene analysis in 43 isolates with ST534 indicated that there were three mutation positions, all of which were silent mutations.Conclusion: The main cause of diphtheria in Jakarta and the surrounding areas is a new sequence type of C. diphtheriae registered as ST534.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Corynebacterium diphtheriae · diphtheria · Jakarta
Abstract
Background/aim: The aim of this study was to find out characteristics and patterns of the spread of Corynebacterium diphtheriaeisolated from Jakarta and the surrounding areas, using the whole genome sequencing WGS technique and multilocus sequence typing MLST approach.Materials and methods: The study samples consisted of 86 C. diphtheriae isolates, which were isolated from diphtheria patients and close contacts of patients. The DNA sequencing was carried out using the WGS technique. Data conversion applied the U-gene software. Molecular typing was conducted through the MLST approach, then followed by online data analysis. Results: The results showed that as many as 43 50% of all samples examined were new types with the same allele profile, namely 9-1-13-4-3-3-4. New sequence type C. diphtheriae is registered in the MLST global database as ST534 based on the allele profile. The tox gene analysis in 43 isolates with ST534 indicated that there were three mutation positions, all of which were silent mutations.Conclusion: The main cause of diphtheria in Jakarta and the surrounding areas is a new sequence type of C. diphtheriae registered as ST534.
SUNARNO, S., RUKMINIATI, Y., SARASWATI, R. D. (2020). ST534: the new sequence type of Corynebacterium diphtheriae causing diphtheria in Jakarta and surrounding areas, Indonesia. Turkish Journal of Medical Sciences, Cilt: 50 - Sayı: 1, 267–270. https://ajindex.com/articles/113255
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