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Unseen Enemy is an essential exploration of reasons 21st-century populations are experiencing a rash of diseases that were once only outbreaks, but have now become full-blown epidemics. This increased risk that we face, and the ways society and individuals can work together to reduce that risk, are explained to the public through the case studies of three epidemics: Ebola, infl...。Ben is your typical high-school overachiever. He’s organized, careful, goal-oriented and extremely dedicated to school. His best friend, Tanner, couldn’t be more opposite. She is a lackadaisical, messy, slacker, who lives in the moment. They aren’t popular, but they don’t seem to care that much because they have each other. Ben has a stern, mean and cruel physics teacher, Mrs. ...。