Reading Metrics
Grade Level
Upper Grades (UG 9-12)
Book Level
9.6
Points
3.0
Fiction/Nonfiction
Nonfiction
Word Count
15172
Points per Word
0.000198
Page Count
126
Points per Page
0.02381
Series
Diseases and People
Description
Discusses the history, diagnosis, causes, prevention and treatment of the disease that attacks the immune system.