Since the dawn of the human race, germs have been making us sick. Whether the ailment is a cold, the flu, diabetes, obesity or certain cancers, the likely cause is germs. Our ancient enemies have four families - bacteria, viruses, fungi, and protozoa - and many names: Ebola, E. coli, salmonella, norovirus, gonorrhea. . . Human beings are engaged in a "war on germs," in which we develop ever-more sophisticated weapons and defensive strategies. But it is a war we can never win. Our best plan for staying as healthy is to choose our battles carefully, and try to co-exist with germs as best we can. The Germ Code is a wise, witty and wonderfully readable guide to our relationship with these infinitesimal but infinitely powerful creatures. Microbiologist Jason Tetro takes us outside the lab and shows the enormous influence of germs upon humanity's past, present and future. He unlocks the mysteries of "the germ code" to reveal how these organisms have exploited our every activity and colonized every corner of the earth. From his own research and personal experience, Tetro relates how the most recent flu pandemic happened, how others may have been averted and how more may come about if we aren't careful. He also explains that not every germ is our foe, and offers advice on harnessing the power of good germs to stay healthy and make our planet a better place. The Germ Code is a fascinating journey through an unseen world, an essential manual to living in harmony with germs and a life-enhancing (as well as life-saving!) good read.