TY - DATA ED - Cyber Ed Inc. TI - Viruses and bacteria PY - 1997/// CY - Chico, Calif. PB - Cyber Ed KW - Viruses KW - Bacteria N2 - Includes diagrams and animations, along with electron photomicrographs and narratives. Virus topics include : size, shapes and structures and attachment to host cell. Types of bacteria : archaebacteria, eubacteria, bacterial diseases and more ER -