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.

‘With all the technology and medical knowledge of the 21st century a pandemic virus has defeated us. This book tells us why and how that could happen and what we can do about it. And as a bonus we get a comparison with the 1918 pandemic Flu. All this wrapped up in a clear, understandable and interesting way. We learn what is happening to us now and how to better prepare for the future.'

Arnold J. Levine - Institute for Advanced Study, Princeton, New Jersey

'An extremely concise and important book that everyone should read to understand the dynamics of the COVID-19 pandemic.'

Siddhartha Mukherjee - Columbia University, New York, and author of The Gene and The Emperor of All Maladies

'Raul Rabadan has written an essential book for the first pandemic of the 21st century, COVID19 caused by SARS-CoV-2. It’s a wonderfully concise and accessible explanation of everything you want to know about the virus, the disease, and the outbreak. If you want to learn what is a coronavirus, how the outbreak started, what are the therapeutic options, and much more, I highly recommend this book. Professor Rabadan explains viruses in a way that is accessible to all.'

Vincent Racaniello - Columbia University, New York

‘A much-needed primer that offers basic information … What Understanding Coronavirus does very well is clarify virology and epidemiology basics. Asking how quickly the virus spreads means explaining the basic reproduction number R0 and concepts such as 'flattening the curve' and herd immunity that everyone has been confronted with. It explains the symptoms, the typical course of the disease, how deadly it is, and that, yes, children and young adults get infected too, but their symptoms are usually less severe … Understanding Coronavirus overall provides a lot of relevant information in a very readable and concise format. And at this price, you cannot really go wrong.’

Leon Vlieger Source: Natural History Book Service

'A clear scientific guide to COVID-19 ... (it) illuminates coronavirus science not only with clear writing but also with good graphics and illustrations.'

Clive Cookson Source: Financial Times

'This small book could be required reading for many politicians and journalists …'

Tilli Tansey Source: Nature

‘Another great value of this small book is the citation of the original research papers Rabadan used. I highly recommend this volume for biology students, teachers, and college professors. The publication presents the main concepts and facts needed to understand the COVID-19 pandemic clearly and concisely.’

Monica Trujillo Source: The Quarterly Review of Biology

‘Following this slim, concise, accessible, recently updated, and nicely illustrated introduction to the coronavirus may take some effort, but readers are sure to find it well worthwhile … The book concludes with the author's comments on diagnosis, prevention, and treatment of COVID-19 and the role vaccines and the immune system play in confronting this virus … Essential.’

S. W. Moss Source: Choice Connect