Download the free Kindle app and start reading Kindle books instantly on your smartphone, tablet, or computer - no Kindle device required.
Read instantly on your browser with Kindle for Web.
Using your mobile phone camera - scan the code below and download the Kindle app.
Viral: The Search for the Origin of Covid-19 Paperback – June 28, 2022
Purchase options and add-ons
"Chan and Ridley write with an urgency...that inspires gripping depictions of what viruses are, how infectious-disease laboratories work and wonderfully lucid descriptions of bats. . . . They powerfully recount how dangerous pathogens can both leak from a lab and emerge in nature." (New York Times Book Review)
Understanding how Covid-19 started is crucial for the future of humankind. Viral is the most incisive and authoritative book about the search for the source of the virus.
A new virus descended on the human species in 2019 wreaking unprecedented havoc. Finding out where it came from and how it first jumped into people is an urgent priority, but early expectations that this would prove an easy question to answer have been dashed. Nearly two years into the pandemic, the crucial mystery of the origin of SARS-CoV-2 is not only unresolved but has deepened.
In this uniquely insightful book, a scientist and a writer join forces to try to get to the bottom of how a virus whose closest relations live in bats in subtropical southern China somehow managed to begin spreading among people more than 1,500 kilometres away in the city of Wuhan. They grapple with the baffling fact that the virus left none of the expected traces that such outbreaks usually create: no infected market animals or wildlife, no chains of early cases in travellers to the city, no smouldering epidemic in a rural area, no rapid adaptation of the virus to its new host—human beings.
To try to solve this pressing mystery, Viral delves deep into the events of 2019 leading up to 2021, the details of what went on in animal markets and virology laboratories, the records and data hidden from sight within archived Chinese theses and websites, and the clues that can be coaxed from the very text of the virus’s own genetic code.
The result is a gripping detective story that takes the reader deeper and deeper into a metaphorical cave of mystery. One by one the authors explore promising tunnels only to show that they are blind alleys, until, miles beneath the surface, they find themselves tantalisingly close to a shaft that leads to the light.
- Print length448 pages
- LanguageEnglish
- PublisherHarper Perennial
- Publication dateJune 28, 2022
- Dimensions5.31 x 1.01 x 8 inches
- ISBN-100063139138
- ISBN-13978-0063139138
Explore your book, then jump right back to where you left off with Page Flip.
View high quality images that let you zoom in to take a closer look.
Enjoy features only possible in digital – start reading right away, carry your library with you, adjust the font, create shareable notes and highlights, and more.
Discover additional details about the events, people, and places in your book, with Wikipedia integration.
Frequently bought together

Similar items that may deliver to you quickly
What Really Happened In Wuhan: A Virus Like No Other, Countless Infections, Millions of DeathsHardcover$11.85 shippingGet it as soon as Tuesday, Jul 23
The Wuhan Cover-Up: And the Terrifying Bioweapons Arms Race (Children’s Health Defense)Robert F. Kennedy Jr.Hardcover$12.17 shipping
The Truth about Wuhan: How I Uncovered the Biggest Lie in HistoryDr. Andrew G. HuffHardcover$10.94 shipping
Editorial Reviews
Review
"Chan and Ridley write with urgency in defending why people ought to take the SARS-CoV-2 lab-leak hypothesis seriously...That urgency inspires gripping depictions of what viruses are, how infectious-disease laboratories work and wonderfully lucid descriptions of bats...They powerfully recount how dangerous pathogens can both leak from a lab and emerge in nature."
— New York Times Book Review
"Viral collates a series of circumstantial but damning points in favour of the lab-leak hypothesis." — Sunday Times (London)
"Chan and Ridley's new book is a viral whodunnit that is sure to appeal to armchair detectives." — The Guardian
“Alina Chan and Matt Ridley assemble perhaps the most comprehensive case for the lab-leak theory currently available.” — Wall Street Journal
“Both journalists and armchair detectives interested in the mystery of the coronavirus were discovering Chan as a kind of Holmes to our Watson. She crunched information at twice our speed, zeroing in on small details we’d overlooked, and became a go-to for anyone looking for spin-free explications of the latest science on COVID-19.” — Boston Globe Magazine
About the Author
Matt Ridley's books—including The Red Queen, Genome, The Rational Optimist, The Evolution of Everything, How Innovation Works, and most recently, Viral: the Search for the Origin of Covid-19 (with Alina Chan)—have sold over a million copies, been translated into 31 languages, and won several awards. He sat in the House of Lords from 2013 and 2021, and was founding chairman of the International Centre for Life in Newcastle. He created the “Mind and Matter” column in the Wall Street Journal in 2010, and was a columnist for the Times. He is a fellow of the Royal Society of Literature and of the Academy of Medical Sciences, and a foreign honorary member of the American Academy of Arts and Sciences. He lives in Northumberland.
Dr. Alina Chan is a postdoctoral researcher with a background in medical genetics, synthetic biology, and vector engineering. At the Broad Institute of MIT & Harvard, Dr. Chan is currently creating next generation vectors for human gene therapy. During the COVID-19 pandemic, Dr. Chan began to investigate problems relevant to finding the origins of the SARS-CoV-2 virus and in parallel spearheaded the development of the COVID-19 CoV Genetics (covidcg.org) browser for scientists worldwide to rapidly track virus lineages and mutations by locations and date ranges of interest. Follow Dr. Alina Chan on Twitter at @Ayjchan
Product details
- Publisher : Harper Perennial (June 28, 2022)
- Language : English
- Paperback : 448 pages
- ISBN-10 : 0063139138
- ISBN-13 : 978-0063139138
- Item Weight : 11.2 ounces
- Dimensions : 5.31 x 1.01 x 8 inches
- Best Sellers Rank: #249,140 in Books (See Top 100 in Books)
- #72 in Epidemiology (Books)
- #73 in Forensic Medicine (Books)
- #106 in Biochemistry (Books)
- Customer Reviews:
About the author

Discover more of the author’s books, see similar authors, read author blogs and more
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the book full of facts and studies, detailed but readable. They also describe the writing style as well-written, logical, and woven together well. Readers say the book is unnerving and vital, the very best true science crime primer, and an excellent read.
AI-generated from the text of customer reviews
Customers find the book full of facts and studies, with an excellent summary of what is known about the origin of SARS-COV-2. They also describe the book as logical, objective, and balanced. Readers also say it's a must-read for all and apolitical research that is easy to understand.
"...Viral is exciting and a dense collection of evidence on the origins of COVID...." Read more
"Well written and logical, as with other Matt Ridley books that I have read...." Read more
"...Wanna know where Covid 19 started?… this book explains it very well; and tells why the initial infection only affected those directly exposed by..." Read more
"This book is a very competent and highly readable summary of the evidence that very strongly suggests a lab leak as the origin of SARS-CoV-2...." Read more
Customers find the book excellent and very readable.
"...Neither book makes the other redundant, both are well worth reading to gain perspectives on the origins of the pandemic that has killed 5 million..." Read more
"This book is a very competent and highly readable summary of the evidence that very strongly suggests a lab leak as the origin of SARS-CoV-2...." Read more
""Viral" is very good and replete with great information and extensive explanation of the science surrounding SARS‑CoV‑2...." Read more
"I only recently bought this book but it's amazing. The authors stay away from politics and just focus on the facts of Covid and where it came from...." Read more
Customers find the writing style well-written, logical, and exciting. They also say the story is woven together well and the cases are made for both sides. Readers also say it's an unnerving, vital read and the very best true science crime primer they've chanced to read.
"...The story is woven together well and the cases are made for both sides with the evidence weighing more heavily, but not with certainty, on a virus..." Read more
"Well written and logical, as with other Matt Ridley books that I have read...." Read more
"...Viral is the very best true science crime primer I've chanced to read...." Read more
"This is an excellent text that details the most likely origin of COVID-19 and suggests the forces responsible for limiting the available information..." Read more
Reviews with images
-
Top reviews
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
The book weaves together a dense story starting with the mysterious death of several miners in Mojiang County in 2012. In a bat cave in this county several miners came down with pneumonia and significant health deterioration with unknown origins. Speculations included fungal and viral infections but nothing identified as known disease. The authors give some perspective on the subsequent studying of these cases as masters and doctoral dissertations published on these cases but these remained within Chinese databases and were not the subject of international publication. The mine from which this occurred remains completely closed to any investigation and is not willingly discussed by China. The authors and a large number of scientists believe these cases and that cave are the likely origin of Covid. The caves of Yunnan are filled with species of bats which are the most abundant source of zoonotic viruses. Their large communities and close proximity of living leads to large virus pools that are not suited to humans or other animals but are potentially a few mutations away from being able to jump species. The authors discuss how the study of such bat populations and their viruses was the business of the Wuhan Institute of Virology, run by Dr Shi. A prominent character in the story of Covid. Their team analyzed bat viruses for years and sequenced their findings (though did not share their results and then only partially until internet sleuths found evidence of their existence on the internet). Thus the Wuhan Institute of Virology (WIV) studied and analyzed bat genomes with coronavirus structures for years. Furthermore the institute along with general scientific momentum likely engaged in gain of function research on viruses with the ambition of getting ahead of the next pandemic by putting oneself in the position to understand viral evolution better. This sort of scientific attitude is controversial with both advocates and skeptics able to make strong cases. It is hard to imagine in a country like China their ambitions don't completely dominate any interest in ethics, but of course this is speculative.
The author spend time highlighting how lab leaks happen, giving examples in the Soviet Union as well as the US. They also discuss the level of biosafety labs that have been constructed and the safety protocols around research type and lab type. In this the author's highlight that the safety standards of Chinese labs is questionable, as they often dismissed their western peers who helped build the labs leaving a scarcity of lab technicians trained to use such highly specified equipment. A topic Chinese scientists no doubt would instinctually disagree with, but the examples given are highly concerning though there is no one given the opportunity to rebut them. The authors discuss the level of security in the WIV and its capacity to work on both genome analysis and gain of function research.
The authors spend time giving the reader and understanding of the peculiarities of COVID. The most obvious is that a virus which jumps species is extremely unlikely to be highly infectious. The binding receptors for humans and the original animal host will be different requiring mutations, thus usual first cases are people in extremely close proximity to animals often catch but don't transmit. In the case of COVID its original mutations were few meaning the virus was immediately suited for human transmission. The tracing of the chain of infections led to at best the fish section of the wet-market, which was originally given as the origin. This should now considered to be of negligible probability. The second story pushed by Chinese officials is it was transmitted in frozen food, this too has negligible probability as a scenario and there is no evidence for it either. The authors discuss pangolins and civet cats and how they are vessels for bat viruses rather than a source of virus. So one also gets decent biology lessons throughout. There is a discussion of how the spike protein is so effective and how it is unique to COVID indicating some chance of engineering. This of course would be highly disputed by Chinese policy makers but that is purely their self interest being displayed loudly rather than substantiated with evidence.
The authors weave throughout the story the reality of Chinese authorities and Dr Shi's team not being cooperative. There was late release of genome data, non-existent record keeping of early patient data. Non-sense privacy arguments on sidelining blood analysis of patients in Wuhan in 2019. Overall its pretty shocking how little China has been willingly providing on the origins of Covid but then not so shocking when considering their initial desire to cover up the outbreak. There are so many extremely strange instances of, very close but prior to the outbreak genome data being taken offline and or renamed. Of course there's an excuse for everything but the collage of evidence points to a lack of transparency that projects guilt, whether or not such is the case. If anything confidence on the China narrative on the origin of Covid is now deservedly low, while confidence in the case for a lab leak, accidental as it would have been has risen.
Viral is exciting and a dense collection of evidence on the origins of COVID. It attempts to be even in its analysis giving arguments for each side and claiming at the end the authors have yet to form their own conclusions but the writing suggests otherwise. It suggests the authors believe the evidence is stacked towards a lab leak, but an unintentional one. As a reader one will come to the same conclusion but of course that is partially due to the authors putting together the evidence the way they do and not having the other side respond. That being said scientists on the other side, who really are pursuing science and not agents of the state, like Dr Shi, have refused to respond to their questions forcing the reader to come to the same conclusions as the facts the authors put together take one to inescapable. Unfortunately this is increasingly an instance where China's closed autocratic political instincts don't sit well with the scientists investigating the topic. And whether its instincts that are counterproductive or whether its their need to cover up a mistake has amplified a growth in mistrust that wont just go away. Nor has it led to a stronger introspection for all scientific research done in the name of getting ahead of a problem ignoring the probability of creating a problem, namely gain of function research, were it actually a lab leak. It will take the world a long time to get over this pandemic and the exercise of getting to the bottom of the origin of it at the moment is more anti-cathartic than anything.
I tracked the news for a couple of days after the release of this book, expecting a widely publicized counterattack from those endeavoring to suppress the lab leak theory, to shortly follow release of this book. It was not surprising within a day or so to see the NYT, the Washington Post, and the LA Times all headlining the story of a supposed “leading scientist” (with apparently no degrees really relating to virology), who from far afar was supposedly able to rehash information including probable propaganda, and opine that the Wuhan Market was most certainly the origin of the virus.
Glad to spend a modest amount of money on this book and the Markson book, supporting real courage in the face of cowardice and contrived blindness. Both books are great reads.
Top reviews from other countries
Dr Peter Daszak of the EcoHealth Alliance comes across as self serving and duplicitous. He has not acquitted himself well in this pandemic. I am surprised he has not been arrested and questioned for obstructing the investigation into the cause of so many deaths. Daszak’s lack of integrity and downright dishonesty would appear to have helped the CCP hide the truth. But he is not alone. Many Western scientist and journalists have shown a decided lack of judgment. Whatever happened to follow the data, follow the science?
Dr Fauci and the NIH, in funding gain-of-function projects at WIV, has shown a level of naivety completely inexplicable at his level of responsibility.
Daszak and Fauci’s actions have done little to prevent future pandemics and both have shown little evidence they understand that is their primary responsibility. It is why they were given public funds in the first place.
Many scientist in Holland, Spain, Canada, and France have done much to seek out the truth and Alina and Matt have done a brilliant job of putting the jigsaw together.
It’s a tragic tale of human deceit. That so many scientist and politicians do not feel driven to find out how and why so many died is a sad reflection on today’s world.
If you are interested in understanding what little the world does know about the pandemic, ‘Viral’ is the book to read.





