scholarly journals Novel and extendable genotyping system for human respiratory syncytial virus based on whole‐genome sequence analysis

Author(s):  
Jiani Chen ◽  
Xueting Qiu ◽  
Vasanthi Avadhanula ◽  
Samuel S. Shepard ◽  
Do‐Kyun Kim ◽  
...  
Author(s):  
Jiani Chen ◽  
Xueting Qiu ◽  
Samuel Shepard ◽  
Do-Kyun Kim ◽  
James Hixson ◽  
...  

Background: Human respiratory syncytial virus (RSV) is one of the leading causes of respiratory infections, especially in infants and young children. Previous RSV sequencing studies have primarily focused on partial sequencing of G gene (200-300 nucleotides) for genotype characterization or diagnostics. However, the genotype assignment with G gene has not recapitulated the phylogenetic signal of other genes and there is no consensus on RSV genotype definition. Methods: We conducted Maximum Likelihood phylogenetic analysis with 10 RSV individual genes and whole-genome sequence (WGS) that are published in GenBank. RSV genotypes were assigned by the statistical support monophyletic clusters with at least 10-year detection time from the WGS phylogeny. Results: In this study, we first statistically examined the phylogenetic incongruence, rate variation for each RSV gene sequence and WGS. We then proposed a new RSV genotyping system based on a comparative analysis of WGS and the spatial and temporal distribution of each lineage. We also provided an RSV classification tool to perform RSV genotype assignment. Conclusions: This revised RSV genotyping system will provide important information for disease surveillance, epidemiology, and vaccine development.


2020 ◽  
Vol 7 (11) ◽  
Author(s):  
Sarah Flohr ◽  
Alban Ramette ◽  
Philipp K A Agyeman ◽  
Andrea Duppenthaler ◽  
Cordula Scherer ◽  
...  

Abstract Mycobacterium chelonae infections usually resolve with adequate therapy. We report the case of an adolescent with a chronic and progressive M chelonae infection refractory to combined antimicrobial and surgical therapy. Whole genome sequence analysis of consecutive isolates distinguished reinfection from recurrence and contributed to the diagnosis of a factitious disorder.


PLoS ONE ◽  
2017 ◽  
Vol 12 (10) ◽  
pp. e0185656 ◽  
Author(s):  
Andrea D. Tyler ◽  
Elaine Randell ◽  
Maureen Baikie ◽  
Kym Antonation ◽  
Debra Janella ◽  
...  

2021 ◽  
Author(s):  
Dania Ali ◽  
Mushal Allam ◽  
Hisham Altayb ◽  
Dalia Mursi ◽  
M. A Abdalla ◽  
...  

Abstract A pathogenic strains of Macrococcus caseolyticus was isolated from wounds infection during investigation on donkeys in Khartoum State. Samples were collected from external wounds (head, abdomin, back and leg), during different seasons of the year. One isolate (124B) was identified using whole-genome sequence analysis. RAST software identified thirty-one virulent genes of disease and defense including methicillin resistant genes, TatR family and ANT(4’)-Ib. Plasmid rep22 wasidentified by PlasmidFindet-2.0 Server and a CRISPR. MILST-2.0 predicted many novel alleles. NCBI notated the genome as a novel strain of M.caseolyticus strain (DaniaSudan). The MLST-tree-V1 revealed that DaniaSudan and KM0211a strains were interrelated. Strain Daniasudan was resistant to ciprofloxacin, ceftazidime, erythromycin, oxacillin, clindamycin and kanamycin. The prevalence of the strain was 4.73%, with significant differences between collection seasons and locations of wounds. Mice modling showen bacteremia and many clinical (swelling, allergy, wounds and loss of hair). Enlarged, hyperemia, adhesions and abscesses were observed in many organs. This represents the first report of pathogenic strains of M.caseolyticus worldwide.


Oncoscience ◽  
2015 ◽  
Vol 2 (7) ◽  
pp. 618-628 ◽  
Author(s):  
John M. Furgason ◽  
Robert F. Koncar ◽  
Sharon K. Michelhaugh ◽  
Fazlul H. Sarkar ◽  
Sandeep Mittal ◽  
...  

Viruses ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 183 ◽  
Author(s):  
Tohru Suzuki ◽  
Yoshihiro Otake ◽  
Satoko Uchimoto ◽  
Ayako Hasebe ◽  
Yusuke Goto

Bovine coronavirus (BCoV) is zoonotically transmissible among species, since BCoV-like viruses have been detected in wild ruminants and humans. BCoV causing enteric and respiratory disease is widespread in cattle farms worldwide; however, limited information is available regarding the molecular characterization of BCoV because of its large genome size, despite its significant economic impact. This study aimed to better understand the genomic characterization and evolutionary dynamics of BCoV via comparative sequence and phylogenetic analyses through whole genome sequence analysis using 67 BCoV isolates collected throughout Japan from 2006 to 2017. On comparing the genomic sequences of the 67 BCoVs, genetic variations were detected in 5 of 10 open reading frames (ORFs) in the BCoV genome. Phylogenetic analysis using whole genomes from the 67 Japanese BCoV isolates in addition to those from 16 reference BCoV strains, revealed the existence of two major genotypes (classical and US wild ruminant genotypes). All Japanese BCoV isolates originated from the US wild ruminant genotype, and they tended to form the same clusters based on the year and farm of collection, not the disease type. Phylogenetic trees on hemagglutinin-esterase protein (HE), spike glycoprotein (S), nucleocapsid protein (N) genes and ORF1 revealed clusters similar to that on whole genome, suggesting that the evolution of BCoVs may be closely associated with variations in these genes. Furthermore, phylogenetic analysis of BCoV S genes including those of European and Asian BCoVs and human enteric coronavirus along with the Japanese BCoVs revealed that BCoVs differentiated into two major types (European and American types). Moreover, the European and American types were divided into eleven and three genotypes, respectively. Our analysis also demonstrated that BCoVs with different genotypes periodically emerged and predominantly circulated within the country. These findings provide useful information to elucidate the detailed molecular characterization of BCoVs, which have spread worldwide. Further genomic analyses of BCoV are essential to deepen the understanding of the evolution of this virus.


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