scholarly journals Efficacy of an antimicrobial surface coating against human coronavirus 229E and SARS-CoV-2

Author(s):  
Luisa A. Ikner ◽  
Jason R. Torrey ◽  
Patricia M. Gundy ◽  
Charles P. Gerba
BMC Biology ◽  
2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Andra Waagmeester ◽  
Egon L. Willighagen ◽  
Andrew I. Su ◽  
Martina Kutmon ◽  
Jose Emilio Labra Gayo ◽  
...  

Abstract Background Pandemics, even more than other medical problems, require swift integration of knowledge. When caused by a new virus, understanding the underlying biology may help finding solutions. In a setting where there are a large number of loosely related projects and initiatives, we need common ground, also known as a “commons.” Wikidata, a public knowledge graph aligned with Wikipedia, is such a commons and uses unique identifiers to link knowledge in other knowledge bases. However, Wikidata may not always have the right schema for the urgent questions. In this paper, we address this problem by showing how a data schema required for the integration can be modeled with entity schemas represented by Shape Expressions. Results As a telling example, we describe the process of aligning resources on the genomes and proteomes of the SARS-CoV-2 virus and related viruses as well as how Shape Expressions can be defined for Wikidata to model the knowledge, helping others studying the SARS-CoV-2 pandemic. How this model can be used to make data between various resources interoperable is demonstrated by integrating data from NCBI (National Center for Biotechnology Information) Taxonomy, NCBI Genes, UniProt, and WikiPathways. Based on that model, a set of automated applications or bots were written for regular updates of these sources in Wikidata and added to a platform for automatically running these updates. Conclusions Although this workflow is developed and applied in the context of the COVID-19 pandemic, to demonstrate its broader applicability it was also applied to other human coronaviruses (MERS, SARS, human coronavirus NL63, human coronavirus 229E, human coronavirus HKU1, human coronavirus OC4).


2021 ◽  
pp. 103780
Author(s):  
Madeleine Blondin-Brosseau ◽  
Jennifer Harlow ◽  
Tanushka Doctor ◽  
Neda Nasheri

1989 ◽  
Vol 35 (10) ◽  
pp. 972-974 ◽  
Author(s):  
Alain Lamarre ◽  
Pierre J. Talbot

The stability of human coronavirus 229E infectivity was maximum at pH 6.0 when incubated at either 4 or 33 °C. However, the influence of pH was more pronounced at 33 °C. Viral infectivity was completely lost after a 14-day incubation period at 22, 33, or 37 °C but remained relatively constant at 4 °C for the same length of time. Finally, the infectious titer did not show any significant reduction when subjected to 25 cycles of thawing and freezing. These studies will contribute to optimize virus growth and storage conditions, which will facilitate the molecular characterization of this important pathogen.Key words: coronavirus, pH, temperature, infectivity, human coronavirus.


2015 ◽  
Vol 68 (1) ◽  
pp. 78-79 ◽  
Author(s):  
Yohei Matoba ◽  
Yoko Aoki ◽  
Shizuka Tanaka ◽  
Kazue Yahagi ◽  
Tsutomu Itagaki ◽  
...  

2014 ◽  
Vol 1838 (4) ◽  
pp. 1088-1095 ◽  
Author(s):  
Ronghua Zhang ◽  
Kai Wang ◽  
Wei Lv ◽  
Wenjing Yu ◽  
Shiqi Xie ◽  
...  

2006 ◽  
Vol 87 (5) ◽  
pp. 1203-1208 ◽  
Author(s):  
Doris Chibo ◽  
Chris Birch

Historically, coronaviruses have been recognized as a cause of minor respiratory infections in humans. However, the recent identification of three novel human coronaviruses, one causing severe acute respiratory syndrome (SARS), has prompted further examination of these viruses. Previous studies of geographically and chronologically distinct Human coronavirus 229E (HCoV-229E) isolates have found only limited variation within S gene nucleotide sequences. In contrast, analysis of the S genes of contemporary Human coronavirus OC43 variants identified in Belgium revealed two distinct viruses circulating during 2003 and 2004. Here, the S and N gene sequences of 25 HCoV-229E variants identified in Victoria, Australia, between 1979 and 2004 in patients with symptomatic infections were determined. Phylogenetic analysis showed clustering of the isolates into four groups, with evidence of increasing divergence with time. Evidence of positive selection in the S gene was also established.


2020 ◽  
Vol 36 ◽  
pp. 101573 ◽  
Author(s):  
Wilmer E. Villamil-Gómez ◽  
Álvaro Sánchez ◽  
Libardo Gelis ◽  
Luz Alba Silvera ◽  
Juliana Barbosa ◽  
...  

2005 ◽  
Vol 102 (23) ◽  
pp. 8275-8280 ◽  
Author(s):  
C. Lassnig ◽  
C. M. Sanchez ◽  
M. Egerbacher ◽  
I. Walter ◽  
S. Majer ◽  
...  

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