Germ Theory

Germ Theory

by Judith Herbst




Early people blamed evil spirits. Later, disease was thought to be caused by an imbalance of bodily fluids. By trial and error, people discovered plants that cured certain ailments. But disease still spread through dirty, crowded cities.

In 1546 an Italian physician proposed that tiny, invisible bodies cause disease. By the end of the nineteenth century, doctors had discovered the microscopic organisms we call bacteria and viruses. This breakthrough led to techniques we take for granted, such as vaccination, the pasteurization of dairy products, sterilization of medical instruments, and the use of antibiotics. This book tells the story of how scientists learned about germs and revolutionized medicine.

Product Details

ISBN-13: 9780822529095
Publisher: Lerner Publishing Group
Publication date: 09/28/2007
Series: Great Ideas of Science Series
Pages: 80
Product dimensions: 6.25(w) x 8.57(h) x 0.45(d)
Age Range: 13 - 17 Years

Table of Contents

Introduction     4
The Road to a Germ Theory     7
Through the Looking Glass     13
A Horror Called Smallpox     21
Connecting Bacteria and Disease     28
Viruses     42
Super bugs end Prions     55
Glossary     68
Timeline     70
Biographies     72
Selected Bibliography     76
Further Reading     76
Websites     77
Index     78

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