AR Book Level
5.5
AR Points
24
Word Count
153,777
Interest Level
Upper Grades (UG 9-12)
Genre
Fiction
AR Quiz #
109938 EN
About this book
Molecular biologist Kay Lang, a specialist in retroviruses, teams up with virus hunter Christopher Dicken and anthropologist Mitch Rafelson in an attempt to trace the ancient source of a flulike disease that is threatening the future of the human race.