How has science helped fight the spread of disease? What happens when diseases resist the latest treatments? Can scientists change people’s DNA to help fight disease? Discover how scientists are fighting back against the threat of disease, from epidemics to pandemics, and explore the incredible weapons they are wielding to do so. The book looks at what are the world’s most deadly widespread diseases, such as HIV/AIDS, polio and even flu. It then explores how scientists battle mutations and employ everything from surgery to genetic modification, to help science fight back against disease.