Description - Understanding Viruses - Set of 5 by
A virus is a type of germ so small that it can only be seen with a microscope. Viruses were discovered in the late 1880s. Discover more in What Is a Virus?, part of the Understanding Viruses series.
Titles in the Set:
Staying Safe From Viruses ----- 978179 1132620
What Is A Virus? ----- 978179 1132545
How Does A Virus Spread? ----- 978179 1132583
What Is An Epidemic? ----- 978179 1132477
What Is A Pandemic? ----- 978179 1132507
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