1. INFLUENZA VIRUS BECOMES ATTACHED TO A TARGET EPITHELIAL CELL. 2. THE CELL ENGULFS THE VIRUS BY ENDOCYTOSIS. 3. VIRAL CONTENTS ARE RELEASED. VIRAL RNA ENTERS THE NUCLEUS WHERE IT IS REPLICATED BY THE VIRAL RNA POLYMERASE. 4. VIRAL MRNA IS USED TO MAKE VIRAL PROTEINS. 5. NEW VIRAL PARTICLES ARE MADE AND RELEASED INTO THE EXTRACELLULAR FLUID THE CELL, WICH IS NOT KILLED IN THE PROCESS, CONTINUES TO MAKE NEW VIRUS