PPT-Viruses, Prions and Viroids

Infectious Agents of Animals and Plants Chapter 14 What am I Structure and Classification of Animal Viruses Classification of animal viruses Taxonomic criteria based on Genomic structure DNA or RNA. Tomato infecting viroids viroids : : West African Example West African Example Bob Gilbertson Department of Plant Pathology University of California - Davis Introduction: What is a viroid? Introduc Other . Acellular. Infectious Agents. 1. 6. Copyright © McGraw-Hill Global Education Holdings, LLC. Permission required for reproduction or display.. Acellular. Agents. Viruses . – protein and nucleic acid. A. Viruses are a unique group of biological entities. 1. They are not capable of surviving without a host cell (lack metabolic machinery). 2. They do, however, contain all the information necessary to direct metabolic processes. Invasive Diseases. Infectious Disease. Also known as . Contagious Disease. Communicable Disease. Transmissible Disease. Caused by a pathogen that causes disease. Not all infections cause disease that can be transmitted. Prabhaker Mateti. Mateti, Viruses, Trojans and Worms. 2. Virus Awareness. Virus Bulletin . http://www.virusbtn.com/. . Technical journal on developments in the field of computer viruses and anti-virus products . Bacterial Infections. Colonization by harmful bacteria. Using the body as resources to grow and reproduce. Battled by the immune system. Different numbers of bacteria needed to overwhelm the immune system and cause infection. Viruses . A nonliving (?) particle made of proteins, nucleic acids, and sometimes lipids (fats). Viruses only reproduce by infecting living cells. Most viruses can only be seen with an electron microscope. Prabhaker Mateti. Mateti, Viruses, Trojans and Worms. 2. Virus Awareness. Virus Bulletin . http://www.virusbtn.com/. . Technical journal on developments in the field of computer viruses and anti-virus products . . Copyright © Houghton Mifflin Harcourt Publishing Company. Unit 2. . Lesson 1 . Archaea, Bacteria, and Viruses. Sized Extra-Small. Copyright © Houghton Mifflin Harcourt Publishing Company. All living things are either prokaryotes or eukaryotes.. Mike . Morain. Basic Lecture Structure. History of malware. Nature and operation of malware. Discuss means of identification, removal, and . prevention. Virtualization in malware. A Brief History. John Von Neumann. VOCABULARY. Virus. Capsid. Envelope. Human . Immunodeficiency Virus (HIV. ). Influenza. Lytic Cycle. Lysogenic Cycle. Lysis. Retrovirus. Prerequisite questions. What are the eight characteristics which all living things have in common. Defiana. . Arnaldy. , . M.Si. 0818 0296 4763. deff_arnaldy@yahoo.com. Overview . Introduction . Trojan . Backdoors. Viruses. Worm . Introduction . Trojans and backdoors are two ways a hacker can gain . Atif. . Chohan. & Alex . Brown. What is CJD?. Degenerative brain disorder. Uncommon, usually fatal. Appears in older people, short duration. First described in 1920. Hans Gerhard . Creutzfeld. /. Assist. Prof. Dr. Hussein Al . Naji. Bovine spongiform encephalopathy (BSE) is a progressive, fatal, infectious neurologic disease of cattle that resembles scrapie of sheep and goats. It was first diagnosed in the UK in 1986. Approximately 200,000 cases of BSE have been diagnosed in cattle, almost all of which were in the UK. In 1992, at the peak of the UK outbreak, 37,280 cases were reported in a single year..