This third edition of Dr Barkes book is 20% larger than previous editions with added insights into the way the pandemic has been handled by governments and an extensive review of the vaccines now available to populations of various countries. Emmanuel Koro, writing in the Chronicle (Zimbabwe) for 30 December 2020, notes: "The book is a must-have for health-watching people from all walks of life. It is organised into brief and informative essays on various topics on the nature of the virus and how effective mask-wearing, school and business shutdowns, social distancing and vaccines are in the fight against the coronavirus. Koro, a South African environmental journalist, adds: "What did the lockdowns gain for us in view of the current third wave of infections and deaths. What socio-economic impacts will they have? Dr Barkes book will help you formulate your own responses to these vital questions and to share your conclusions with others.