Explores commom misconceptions about micro-organisms. We need germs to survive, but some kill and we need to protect ourselves. Learn which to fear, which to welcome, and how to protect yourself. Germs and Viruses a basic unit is cleanliness and personal hygiene.
Includes 1 booklet: Germs and Viruses: a self-defense guide ([13 p. ] ; 19 cm.), c2006.