On Classification and Taxonomy of Coronaviruses (Riboviria, Nidovirales, Coronaviridae) with special focus on severe acute respiratory syndrome-related coronavirus 2 (SARS-Cov-2)

Abstract

Coronaviruses are highly pathogenic and therefore important human and veterinary pathogens viruses worldwide. Members of family Coronaviridae have previously been analysed phylogenetically, resulting in proposals of virus interrelationships. However, available Coronavirus phylogenies remain unrooted, based on limited sampling, and normally depend on a single method. The main subjects of this study are the taxonomy and systematics of coronaviruses and our goal is to build the first natural classification of Coronaviridae using several methods of cladistic analyses, Maximum Likelihood method, as well as rigorous taxonomic sampling, making the most accurate representation of Coronaviridae s relationships to date. Nomenclature recommendations to help effectively incorporate principles of binary nomenclature into Coronaviridae taxonomy are provided. We have stressed that no member of Sarbecovirus clade is an ancestor of SARS Cov 2, and humans are the only known host.

The serial and generation intervals from SARS-CoV-2 transmission dynamics and their potential application in the epidemiology of two citrus diseases

“…The first case was identified in Wuhan, China, in December 2019 (Asselah et al, 2021). Symptoms of the disease can be described as mild in most people, although it can also cause severe illness and even death in others (Mavrodiev et al, 2020;Wu et al, 2020). The chain of infection of COVID-19, as defined in public health, refers to the series of interconnected stages since an infectious agent leaves its host, is conveyed by some mode of transmission, until it enters and infects a new susceptible host.…”

“…El primer caso fue identificado en Wuhan, China, en diciembre de 2019 (Asselah et al, 2021). Los síntomas de esta enfermedad pueden ser descritos como leves en la mayoría de las personas, aunque también puede causar malestares severos e incluso la muerte en otros (Mavrodiev et al, 2020;Wu et al, 2020). La cadena de infección del COVID-19, como la define el sector de salud pública, se refiere a la serie de etapas interconectadas, desde que un agente infeccioso sale de su Special issue: Covid-19 and Plant Health, November, 2021…”

Clinical Features and Treatment Outcome of Coronavirus and Tuberculosis Co-Infected Patients: A Systematic Review of Case Reports

“…Coronavirus is a virus in the kingdom of Riboviria and the family of corona-viridae. 1 The viruses in this family are positive-sense RNA viruses known to cause acute respiratory syndrome (SARS). 2 COVID-19 is caused by the severe acute respiratory syndrome coronavirus-2 (SARS-Cov-2).…”

Development of Colorimetric Reverse Transcription Loop-Mediated Isothermal Amplification Assay for Detecting Feline Coronavirus

“…Feline coronavirus (FCoV) is an enveloped, single-stranded, positive-sense RNA virus, classified as a member of the order Nidovirales , family Coronaviridae , genus Alphacoronavirus , subgenus Tegacovirus , species Alphacoronavirus 1 [ 1 , 2 , 3 ]. It is closely related to human coronavirus NL63 and 229E, canine coronaviruses (CCVs), and porcine transmissible gastroenteritis virus (TGEV) [ 4 , 5 ].…”