Humans have proven very capable at destroying human life in massive numbers, but the success of bacteria and viruses in decimating populations makes villains like Stalin and Hitler look like pikers. The 21 million deaths caused by the 1918 influenza epidemic make the carnage of WWI (that had just concluded) seem like a blip on the screen of human misery. This program from producers Films for the Humanities explores all aspects of these microbial troublemakers. Learn the difference between bacteria and viruses, how these agents affect the immune system, and how some of these bugs actually live in harmony with the human animal. ~ Sean Hurley, All Movie Guide