Whole-Genome Sequencing of Human Enteroviruses from Clinical Samples by Nanopore Direct RNA Sequencing

Enteroviruses are small RNA viruses that affect millions of people each year by causing an important burden of disease with a broad spectrum of symptoms. In routine diagnostic laboratories, enteroviruses are identified by PCR-based methods, often combined with partial sequencing for genotyping. In this proof-of-principle study, we assessed direct RNA sequencing (DRS) using nanopore sequencing technology for fast whole-genome sequencing of viruses directly from clinical samples. The approach was complemented by sequencing the corresponding viral cDNA via Illumina MiSeq sequencing. DRS of total RNA extracted from three different enterovirus-positive stool samples produced long RNA fragments, covering between 59% and 99.6% of the most similar reference genome sequences. The identification of the enterovirus sequences in the samples was confirmed by short-read cDNA sequencing. Sequence identity between DRS and Illumina MiSeq enterovirus consensus sequences ranged between 94% and 97%. Here, we show that nanopore DRS can be used to correctly identify enterovirus genotypes from patient stool samples with high viral load and that the approach also provides rich metatranscriptomic information on sample composition for all life domains.

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Whole genome sequencing of human enteroviruses from clinical samples by nanopore direct RNA sequencing

10.1101/2020.06.09.20126219 ◽

2020 ◽

Author(s):

C. Grädel ◽

M.A. Terrazos Miani ◽

C. Baumann ◽

MT Barbani ◽

S. Neuenschwander ◽

...

Keyword(s):

Whole Genome Sequencing ◽

Rna Sequencing ◽

Genome Sequencing ◽

Illumina Miseq ◽

High Viral Load ◽

Clinical Samples ◽

Whole Genome ◽

Consensus Sequences ◽

Positive Stool ◽

Stool Samples

AbstractEnteroviruses are small RNA viruses that affect millions of people each year by causing an important burden of disease with a broad spectrum of symptoms. In routine diagnostic laboratories, those viruses are identified by PCR based methods, often combined with partial sequencing for genotyping. In this proof-of-principle study, we assessed direct RNA sequencing (DRS) using nanopore sequencing technology for fast whole-genome sequencing of viruses directly from clinical samples. Results of the approach were complemented with those obtained by sequencing the corresponding viral cDNA via Illumina MiSeq sequencing. DRS of total RNA extracted from three different enterovirus-positive stool samples produced long RNA fragments, covering between 59% to 99.6 % of the best reference genomes. The identification of the enterovirus sequences in the sample was confirmed by the short-read cDNA sequencing. Sequence identity between DRS and Illumina MiSeq enterovirus consensus sequences ranged between 94-97%. Here we show that nanopore DRS can be used to correctly identify the genotypes of enteroviruses from patient stool samples with high viral load.

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Assessment of Metagenomic MinION and Illumina sequencing as an approach for the recovery of whole genome sequences of chikungunya and dengue viruses directly from clinical samples

10.1101/355560 ◽

2018 ◽

Cited By ~ 2

Author(s):

Liana E. Kafetzopoulou ◽

Kyriakos Efthymiadis ◽

Kuiama Lewandowski ◽

Ant Crook ◽

Dan Carter ◽

...

Keyword(s):

Dengue Virus ◽

Whole Genome Sequencing ◽

Genome Sequencing ◽

Illumina Miseq ◽

Clinical Samples ◽

Whole Genome ◽

Metagenomic Sequencing ◽

Front Line ◽

Genome Sequences ◽

Oxford Nanopore

AbstractThe recent global emergence and re-emergence of arboviruses has caused significant human disease. Common vectors, symptoms and geographical distribution make differential diagnosis both important and challenging. We performed metagenomic sequencing using both the Illumina MiSeq and the portable Oxford Nanopore MinION to study the feasibility of whole genome sequencing from clinical samples containing chikungunya or dengue virus, two of the most important arboviruses. Direct metagenomic sequencing of nucleic acid extracts from serum and plasma without viral enrichment allowed for virus and coinfection identification, subtype determination and in the majority of cases elucidated complete or near-complete genomes adequate for phylogenetic analysis. This work demonstrates that metagenomic whole genome sequencing is feasible for over 90% and 80% of chikungunya and dengue virus PCR-positive patient samples respectively. It confirms the feasibility of field metagenomic sequencing for these and likely other RNA viruses, highlighting the applicability of this approach to front-line public health.

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Impact of cobas PCR Media Freezing on SARS-CoV-2 Viral RNA Integrity and Whole Genome Sequencing Analyses

10.1101/2021.02.05.430022 ◽

2021 ◽

Author(s):

Patrick Benoit ◽

Floriane Point ◽

Simon Gagnon ◽

Daniel E. Kaufmann ◽

Cécile Tremblay ◽

...

Keyword(s):

Whole Genome Sequencing ◽

Rna Sequencing ◽

Genome Sequencing ◽

Clinical Samples ◽

Nasopharyngeal Swab ◽

Whole Genome ◽

Nucleotide Polymorphisms ◽

Freezing And Thawing ◽

Rna Integrity ◽

Transport Medium

ABSTRACTSARS-CoV-2 whole genome sequencing is an important molecular biology tool performed to support many aspects of the response to the pandemic. Freezing of primary clinical nasopharyngeal swab samples and shipment to reference laboratories is usually required since RNA sequencing is rarely available in routine clinical microbiology laboratories where initial diagnosis and support to outbreak investigations occur. The cobas PCR Media transport medium developed by Roche facilitates high throughput analyses on cobas multianalyzer PCR platforms. There is no data on the stability of SARS-CoV-2 RNA after freezing and thawing of clinical samples in this transport medium, but potential denaturing of the molecular template could impair test results. Our objective was to compare the quality and results of SARS-CoV-2 genomic sequencing when performed on fresh or frozen samples in cobas PCR Media. Viral whole genome sequencing was performed using Oxford Nanopore Technologies MinION platform. Genomic coverage and sequencing depth did not significantly differ between fresh and frozen samples (n=10). For samples with lower viral inoculum and PCR cycle threshold above 30, sequencing quality scores and detection of single nucleotide polymorphisms did not differ either. Freezing of cobas PCR Media does not negatively affect the quality of SARS-CoV-2 RNA sequencing results and it is therefore a suitable transport medium for outsourcing sequencing analyses to reference laboratories. Those results support secondary use of diagnostic nasopharyngeal swab material for viral sequencing without requirement for additional clinical samples.

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Cattle connection: molecular epidemiology of BVDV outbreaks via rapid nanopore whole-genome sequencing of clinical samples

BMC Veterinary Research ◽

10.1186/s12917-021-02945-3 ◽

2021 ◽

Vol 17 (1) ◽

Author(s):

Jacqueline King ◽

Anne Pohlmann ◽

Kamila Dziadek ◽

Martin Beer ◽

Kerstin Wernike

Keyword(s):

Whole Genome Sequencing ◽

Genome Sequencing ◽

Economic Losses ◽

Clinical Samples ◽

Bovine Viral Diarrhea ◽

Sequence Information ◽

Whole Genome ◽

Diarrhea Virus ◽

Viral Diarrhea ◽

Viral Loads

Abstract Background As a global ruminant pathogen, bovine viral diarrhea virus (BVDV) is responsible for the disease Bovine Viral Diarrhea with a variety of clinical presentations and severe economic losses worldwide. Classified within the Pestivirus genus, the species Pestivirus A and B (syn. BVDV-1, BVDV-2) are genetically differentiated into 21 BVDV-1 and four BVDV-2 subtypes. Commonly, the 5’ untranslated region and the Npro protein are utilized for subtyping. However, the genetic variability of BVDV leads to limitations in former studies analyzing genome fragments in comparison to a full-genome evaluation. Results To enable rapid and accessible whole-genome sequencing of both BVDV-1 and BVDV-2 strains, nanopore sequencing of twelve representative BVDV samples was performed on amplicons derived through a tiling PCR procedure. Covering a multitude of subtypes (1b, 1d, 1f, 2a, 2c), sample matrices (plasma, EDTA blood and ear notch), viral loads (Cq-values 19–32) and species (cattle and sheep), ten of the twelve samples produced whole genomes, with two low titre samples presenting 96 % genome coverage. Conclusions Further phylogenetic analysis of the novel sequences emphasizes the necessity of whole-genome sequencing to identify novel strains and supplement lacking sequence information in public repositories. The proposed amplicon-based sequencing protocol allows rapid, inexpensive and accessible obtainment of complete BVDV genomes.

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Whole Genome Sequencing and Antimicrobial Resistance of Staphylococcus aureus from Surgical Site Infections in Ghana

Pathogens ◽

10.3390/pathogens10020196 ◽

2021 ◽

Vol 10 (2) ◽

pp. 196

Author(s):

Beverly Egyir ◽

Jeannette Bentum ◽

Naiki Attram ◽

Anne Fox ◽

Noah Obeng-Nkrumah ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Whole Genome Sequencing ◽

Genome Sequencing ◽

Meca Gene ◽

Surgical Site Infections ◽

Illumina Miseq ◽

Multi Drug Resistance ◽

Toxin Gene ◽

Whole Genome ◽

Flight Mass Spectrometry

Staphylococcus aureus (S. aureus) is a common cause of surgical site infections (SSIs) globally. Data on the occurrence of methicillin-susceptible S. aureus (MSSA) as well as methicillin-resistant S. aureus (MRSA) among patients with surgical site infections (SSIs) in sub-Saharan African are scarce. We characterized S. aureus from SSIs in Ghana using molecular methods and antimicrobial susceptibility testing (AST). Wound swabs or aspirate samples were collected from subjects with SSIs. S. aureus was identified by matrix-assisted laser desorption ionization–time of flight mass spectrometry (MALDI-TOF-MS); AST was performed by Kirby-Bauer disk diffusion, and results were interpreted according to the Clinical and Laboratory Standards Institute (CLSI) guideline. Detection of spa, mecA, and pvl genes was performed by polymerase chain reaction (PCR). Whole-genome sequencing (WGS) was done using the Illumina MiSeq platform. Samples were collected from 112 subjects, with 13 S. aureus isolates recovered. Of these, 92% were sensitive to co-trimoxazole, 77% to clindamycin, and 54% to erythromycin. Multi-drug resistance was detected in 5 (38%) isolates. The four mecA gene-positive MRSA isolates detected belonged to ST152 (n = 3) and ST5 (n = 1). In total, 62% of the isolates were positive for the Panton-Valentine leukocidin (pvl) toxin gene. This study reports, for the first time, a pvl-positive ST152-t355 MRSA clone from SSIs in Ghana. The occurrence of multi-drug-resistant S. aureus epidemic clones suggests that continuous surveillance is required to monitor the spread and resistance trends of S. aureus in hospital settings in the country.

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Generating 1200bp tiled Amplicons for SARS-CoV2 Whole Genome Sequencing v2

10.17504/protocols.io.b3viqn4e ◽

2022 ◽

Author(s):

jason.nguyen not provided ◽

Tracy Lee ◽

Rebecca Hickman ◽

Natalie Prystajecky ◽

John Tyson

Keyword(s):

Whole Genome Sequencing ◽

Genome Sequencing ◽

Illumina Miseq ◽

Whole Genome ◽

Oxford Nanopore ◽

Sequencing Platforms

This procedure provides instructions for how to generate amplicons across the entire SARS-CoV-2 genome to be used for downstream whole genome sequencing applications, including Illumina MiSeq/NextSeq or Oxford Nanopore MinION sequencing platforms. The steps involved in this protocol were derived from version 3 of Freed et al protocol nCoV-2019 sequencing protocol (RAPID barcoding, 1200bp amplicon)V.3 available at https://dx.doi.org/10.17504/protocols.io.bgggjttw

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Whole genome sequencing of respiratory syncytial (RSV) virus from clinical samples with low viral load v1 (protocols.io.qsedwbe)

protocols.io ◽

10.17504/protocols.io.qsedwbe ◽

2018 ◽

Author(s):

Stephanie Goya ◽

Gabriel L ◽

Mercedes S ◽

Laura E ◽

Alicia S ◽

...

Keyword(s):

Viral Load ◽

Whole Genome Sequencing ◽

Genome Sequencing ◽

Clinical Samples ◽

Whole Genome

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Rapid, high throughput library preparation of SARS-CoV2 using Illumina’s DNA Prep Library Preparation Kit v2

10.17504/protocols.io.b3vgqn3w ◽

2022 ◽

Author(s):

Jason Nguyen ◽

Rebecca Hickman ◽

Tracy Lee ◽

Natalie Prystajecky ◽

John Tyson

Keyword(s):

Whole Genome Sequencing ◽

Genome Sequencing ◽

High Throughput ◽

Illumina Miseq ◽

Whole Genome ◽

Library Preparation ◽

Dna Libraries ◽

Reaction Volumes ◽

Single Size ◽

Stop Buffer

This procedure provides instructions on how to prepare DNA libraries for whole genome sequencing on an Illumina MiSeq or NextSeq using Illumina’s DNA Prep Library Preparation Kit scaled to half reaction volumes with modifications to the post-PCR procedures; tagmentation stop buffer and associated washes are removed and libraries are pooled post PCR then a single size selection is performed. This protocol is used to sequence SARS-CoV-2 using the cDNA/PCR protocol: https://dx.doi.org/10.17504/protocols.io.b3viqn4e

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