TY - BOOK N2 - Explains good and bad germs, the different kinds, how they can help you, how some cause diseases, and how we fight diseases. AB - Explains good and bad germs, the different kinds, how they can help you, how some cause diseases, and how we fight diseases. T1 - Bacteria and viruses / DA - c1985. CY - Chicago : AU - LeMaster, Leslie Jean. CN - QR57 CN - CMC QR57 PB - Childrens Press, PP - Chicago : PY - c1985. N1 - Includes index. ID - 144513 KW - Bacteria KW - Viruses KW - Immunity KW - Bacteria. KW - Viruses. KW - Diseases. KW - Health. SN - 0516019376 (lib. bdg.) TI - Bacteria and viruses / ER -