Virusphere: What doesn’t kill you makes you stronger. Frank Ryan

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Virusphere: What doesn’t kill you makes you stronger - Frank  Ryan

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       Copyright

      William Collins

      An imprint of HarperCollinsPublishers

      1 London Bridge Street

      London SE1 9GF

       WilliamCollinsBooks.com

      This eBook first published in Great Britain by William Collins in 2019

      Copyright © Frank Ryan 2019

      Frank Ryan asserts the moral right to be identified as the author of this work.

      A catalogue record for this book is available from the British Library.

      All rights reserved under International and Pan-American Copyright Conventions. By payment of the required fees, you have been granted the non-exclusive, non-transferable right to access and read the text of this e-book on-screen. No part of this text may be reproduced, transmitted, down-loaded, decompiled, reverse engineered, or stored in or introduced into any information storage and retrieval system, in any form or by any means, whether electronic or mechanical, now known or hereinafter invented, without the express written permission of HarperCollins.

      Source ISBN: 9780008296674

      eBook Edition © March 2019 ISBN: 9780008296698

      Version: 2019-02-21

       Dedication

      I would like to thank my editors,

      Myles Archibald and Hazel Eriksson,

      and my agent, Jonathan Pegg,

      for their support of my writing this book

       Epigraph

       We all play hideous games with each other.

       We step inside each other’s chalk circles.

      Anthony Hopkins

      Contents

       Cover

       Title Page

      Copyright

      Dedication

      Epigraph

      Introduction

      1. What Are Viruses?

      2. Coughs and Sneezes Spread Diseases

       8. An All-American Plague

       9. Lurker Viruses

       10. How Flu Viruses Reinvent Themselves

       11. A Lesson from a Machiavellian Virus

       12. The Mystery of Ebola

       13. The Mercurial Nature of the Zika Virus

       14. A Taste for the Liver

       15. Warts and All

       16. Lilliputian Giants

       17. Are Viruses Alive?

       18. Inspiring Terror – and Delight

       19. The Ecology of the Oceans

       20. The Virosphere

       21. The Origins of the Placental Mammals

       22. Viruses in the Origins of Life

       23. The Fourth Domain?

       Bibliography and References

       Index

       About the Book

       About the Author

       Also by Frank Ryan

       About the Publisher

       Introduction

      What springs to your mind when you sit back and consider viruses? I am altogether aware that even if you come, as will many of my readers, from a non-scientific background, you will likely be uncertain as to the strange and ill-definable nature of viruses. Even among scientists, viruses are among the most enigmatic of the biological entities that are to be found on our precious blue-girdled planet. Certainly, there is a good deal of misinformation about them. You might, for example, be apt to confuse them with bacteria, a confusion that is not helped by the fact that we doctors caused this confusion in the first case by lumping two radically different entities together as the ‘microbes’ that are the root cause of infectious diseases.

      Viruses frighten us. They elicit a primal fear of the unknown. They are capable of crashing through our natural barriers and defences, turning healthy cells into microscopic factories to produce exponential numbers of daughter viruses. These swarm through the bloodstream, drawing the attention of the immune system. This provokes our own white blood cells and other immune defences to become an aggressive reactionary force, fixated on annihilating the invaders, regardless of the devastation in their wake – indeed our very own immune system contributes to many of the familiar symptoms of the resultant illness, from runny noses to violent, bloody haemorrhages. In effect, every infection becomes a pitched battle that will determine the outcome for us, the host. As we come to know viruses better, we discover that they have also come to know us intimately,

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