Slide 11 Viruses Slide 2 2 Are Viruses Living or Non-living? Viruses are non living They have some properties of life but not others They cant maintain a constant internal…
Slide 1 James R. Ginder, MS, WEMT,PI, CHES Health Education Specialist Hamilton County Health Department www.co.hamilton.in.us PRESENTATION WILL AUTO ADVANCE PRESS ‘ESC’…
Slide 1 1 The Spirochetes Gram-negative human pathogens Free living saprobes, or commensals of animals, not primary pathogens –Treponema –Leptospira –Borrelia Slide…
Slide 1 Viruses Discovered in 1898 as the cause of hoof-and- mouth disease in cattle. The disease-causing organism was much smaller than bacteria—it could pass through…
Viral Replication In order to reproduce a virus must invade or infect a living host cell. To infect a cell, the virus must first attach to it. This attachment is specific…