Under the Microscope

Virus: Just the word makes people squirm and want to wash their hands. Readers will learn what these microscopic pests are and examine various strains in magnified photographs. They''ll find out how viruses replicate and travel from place to place. They''ll understand that viruses don''t just infect people. Perhaps most importantly, readers will learn what they can do to protect themselves from viruses now and in the future.