Coronaviruses were recognized as a group of enveloped, RNA viruses in 1968 and accepted by the International Committee on the Taxonomy of Viruses as a separate family, the Coronaviridae, in 1975. By 1978, it had become evident that the coronavirus genomic RNA was infectious (i. e. , positive strand), and by 1983, at least the framework of the coronavirus replication strategy had been per ceived. Subsequently, with the application of recombinant DNA techniques, there have been remarkable advances in our understanding of the molecular biology of coronaviruses, and a mass of structural data concerning coronavirus genomes, mRNAs, and pro teins now exists. More recently, attention has been focused on the role of essential and accessory gene products in the coronavirus replication cyde and a molecular analysis of the structure-function relation ships of coronavirus proteins. Nevertheless, there are still large gaps in our knowledge, for instance, in areas such as the genesis of coronavirus subgenomic mRNAs or the function of the coronavirus RNA-dependent RNA polymerase. The diseases caused by coronaviruses have been known for much longer than the agents themselves. Possibly the first coronavirus-related disease to be recorded was feline infectious peritonitis, as early as 1912. The diseases associ ated with infectious bronchitis virus, transmissible gastroenteritis virus, and murine hepatitis virus were all well known before 1950.

Since the identification of the first cases of the coronavirus in December 2019, there has been a significant amount of confusion regarding the origin and spread of the so-called 'coronavirus', SARS-CoV-2, and the cause of the disease COVID-19. Conflicting messages from the media and officials across different countries and organizations, the abundance of disparate sources of information, unfounded conspiracy theories on the origins of the virus, unproven therapies, and inconsistent public health measures, have all served to increase anxiety in the population. Where did the virus come from? How is it transmitted? How does it cause disease? Is it like flu? What is a pandemic? In this concise and accessible introduction, a leading expert provides answers to these commonly asked questions. This revised and updated edition now also covers how the virus mutates, how important these mutations are, how vaccines work, and what we can expect in the near and long-term future.

Since the identification of the first cases of the coronavirus in December 2019 in Wuhan, China, there has been a significant amount of confusion regarding the origin and spread of the so-called 'coronavirus', officially named SARS-CoV-2, and the cause of the disease COVID-19. Conflicting messages from the media and officials across different countries and organizations, the abundance of disparate sources of information, unfounded conspiracy theories on the origins of the newly emerging virus and the inconsistent public health measures across different countries, have all served to increase the level of anxiety in the population. Where did the virus come from? How is it transmitted? How does it cause disease? Is it like flu? What is a pandemic? What can we do to stop its spread? Written by a leading expert, this concise and accessible introduction provides answers to the most common questions surrounding coronavirus for a general audience.

Coronaviruses represent a major group of viruses of both molecular biological interest and clinical significance in animals and humans. During the past two decades, coronavirus research has been an expanding field and, since 1980, an international symposium was held every 3 years. We organized the yth symposium for providing an opportunity to assess important progresses made since the last symposium in Cambridge (U. K. ) and to suggest areas for future investigations. The symposium, held in September 1992, in Chantilly, France, was attended by 120 participants representing the majOlity of the laboratories engaged in the field. The present volume collects 75 papers which were presented during the yth symposium, thus providing a comprehensive view of the state of the art ofCoronavirology. The book is divided into 7 chapters. The first chapters gather reports dealing with genome organization, gene expression and structure-function relationships of the viral polypeptides. New sequence data about as yet poorly studied coronaviruses - canine coronavirus CCY and porcine epidemic diarrhoea virus PEDY - are presented. Increasing efforts appear to be devoted to the characterization of products of unknown function, encoded by various open reading frames present in the coronavirus genomes or delived from the processing of the large polymerase polyprotein. Due to the extreme size of their genome, the genetic engineering ofcoronavi\'uses through the production of full length cDNA clones is presently viewed as an unachievahle task.

COVID-19 has taken the entire world by storm. Many of the smartest people on Earth have been working to find treatments, a vaccine, and ultimately, a cure. So what exactly is COVID-19? What is a "coronavirus"? Where did the disease come from? How do you know if you have it? How is it treated? How do you stop yourself from getting it or passing it on to others? Learn all about the answers to these questions, and one more question on everyone's mind: When and how will the world go back to normal?

The coronaviruses are ssRNA viruses that infect a wide range of mammalian and avian species; they are important causes of respiratory and enteric disease, encephalomyelitis, hepatitis, serositis and vasculitis domestic animals. In humans coronaviruses are one of several groups of viruses that cause the common cold. The genus Coronavirus together with the genus Torovirus from the family Coronaviridae; members of these two genera are similar morphologically. The Coronaviridae, Arteriviridae, and Roniviridae are within the order Nidovirales. Seven coronaviruses are known to infect humans, three of them are serious, namely, SARS (severe acute respiratory syndrome, China, 2002), MERS (Middle East respiratory syndrome, Saudi Arabia, 2012), and SARS-CoV-2 (2019-2020). SARS is caused by a coronavirus (SARS-CoV) which exists in bats and palm civets in Southern China. Its family is Coronaviridae, and its genus is Coronavirus. The most important groups who are at risk are family members in close contact with cases, health-care workers in close contact with cases, elderly and immune compromised individuals appear at increased risk. MERS-CoV is a zoonotic virus which can lead to secondary human infections. It is the sixth coronavirus that influences human. MERS-CoV is most likely derived from an ancestral reservoir bats. MERS outbreak was found in the Republic of Korea since 2015. Coronavirus entry is initiated by the binding of the spike protein (S) to cell receptors, specifically, dipeptidyl peptidase 4 (DDP4) and angiotensin converting enzyme 2 (ACE2) for MERS-CoV and SARS-CoV, respectively. The genome sequence analysis has shown that SARS-CoV-2 belongs to betacoronavirus genus, which includes Bat SARS-like coronavirus, SARS-CoV and MERS-CoV. On the basis of nucleic acid sequence similarity, the newly identified 2019-nCoV is a betacoronavirus. The RBD portion of the SARS-CoV-2 pike proteins has evolved to effectively target a molecular feature on the outside of human cells called ACE2, a receptor involved in regulating blood pressure. The SARS-CoV-2 spike protein was found so effective at binding the human cells. In SARS-CoV-2, M protein is responsible for the transmembrane transport of nutrient, the bud release and the formation of envelope, S protein, attaching to hose receptor ACE2, including two subunits S1 and S2. These diseases can be considered important models for emerging infectious diseases as it emerged from natural animal reservoirs. Early recognition, prompt isolation and appropriate supportive therapy are the main parameters in combating with these deadly infections.

100 Questions & Answers About Coronaviruses is a timely resource that organizes and distills cutting-edge information and data on COVID-19 in a single, convenient, easy-to-read resource. Featuring a foreword by Dr. Aaron Glatt, Chairman and Chief of Infectious Diseases and Hospital Epidemiologist at Mount Sinai South Nassau, 100 Questions and Answers About Coronaviruses begins with a history and myths about coronaviruses and progresses to answer questions about how COVID-19 affects children and adults, current vaccine research, quarantine, social distancing, preventing future pandemics, and more often asked questions. 100 Questions & Answers About Coronaviruses is a must-read for anyone interested in learning about the coronavirus that has reshaped our daily lives.

In 2003, the word "coronavirus" spread across the globe, somewhat further than the virus that sparked the panic. In this book, expert researchers examine these devastating viruses through 23 state-of-the-art, widely applicable protocols with minute detail. Comprehensive and cutting-edge, the book serves as an ideal guide for all virologists and especially for those working with coronaviruses. Written by international experts, this book is relevant to a wide array of professions.

This detailed volume provides diagnosticians and researchers with practical methodologies and approaches to tackle animal coronaviruses. It explores conventional immunohistochemistry, virus neutralization, enzyme-linked immunosorbent assays, expression and purification of recombinant viral proteins, and various molecular assays, including conventional and real-time reverse transcription-PCR, reverse genetics methodology, and next generation sequencing and sequence analyses. As part of the Springer Protocols Handbooks series, chapters contain readily reproducible laboratory protocols as well as expert tips on troubleshooting and avoiding known pitfalls. Practical and authoritative, Animal Coronaviruses serves as an ideal reference for researchers examining a wide variety of coronavirus species in the Coronaviridae.

The Complete Guide to the Coronavirus (COVID-19): Symptoms, Prevention, Diagnosis & Treatment, is a comprehensive guide for those individuals wanting to know more about the coronavirus (COVID-19). A must read for anyone concerned about the effects of the coronavirus, its symptoms, effects on the human body, how they can protect themselves from contracting the virus and available treatments. Inside this in-depth coronavirus guide you will discover: What the Coronavirus is. How the Coronavirus is Transmitted. Symptoms of the Coronavirus. Who is at Higher Risk of Contracting the Virus. How to Avoid Contracting the Coronavirus. The Effects the Coronavirus has on the Human Body. Available Testing Methods for the Coronavirus. Currently Available Treatments for the Coronavirus. Common Myths about the Coronavirus. And so Much More... The Complete Guide to the Coronavirus (COVID-19): Symptoms, Prevention, Diagnosis & Treatment, really is a must have to help you understand the what, why and how of the coronavirus and how contracting it can be prevented, what symptoms to watch out for and, how it can be treated.