Infectious diseases have been a part of society for as long as humans have existed on earth and, of course, will continue to be with us for ever, but as society evolves so does the behaviour of these diseases. This book gives the reader a thorough insight into how our “modern” civilisation, with its so-called globalisation trends, has upset the balance between natural barriers and infection spread. Despite mankind’s desperate effort to control events, these “unseen travellers”, as Dr Kimball has aptly nicknamed infectious agents, can penetrate our defences …