books.google.com - The struggle against deadly microbes is endless. Diseases that have plagued human beings since ancient times still exist, new maladies like SARS make their way into the headlines, we are faced with vaccine shortages, and the threat of germ warfare has reemerged as a worldwide threat.In this riveting...https://books.google.com/books/about/When_Germs_Travel.html?id=9aoTfHAEQvoC&utm_source=gb-gplus-shareWhen Germs Travel
