How to explain the emergence and/or re-emergence of several infectious diseases?

Zika, A/H1N1 influenza, Chikungunya, SARS, Ebola... We are being hit hard by the emergence or re-emergence of a great many infectious diseases. What is behind this phenomenon? Could our modern lifestyles have something to do with it? In the light of the major epidemics that humanity has faced to date, what should we be preparing for in the future? How can we best protect ourselves? What is the latest research? In this book, renowned infectious disease specialists provide clear answers to many highly specific questions.