PPT-Virus Structure, Classification, and Cycle of Infection

By Maddy Connell Ava Taurino and Shane Landue Overview   What is a virus  Structures of viruses  How viruses reproduce  Cells infected by viruses  Diseases caused by RNA viruses  The Lytic Cycle. Parasitic Worms. Kingdom . Animalia. : . eukaryotic. , no cell walls, heterotrophic nutrition, specialized tissues. A. Platyhelminthes. Flatworms. e.g. planarians . Platyhelminthes. Trematoda. = flukes . Charles J. Russell, PhD. postdoc: Crystal Burke, PhD. Funding: NIAID R01AI083370. HPIV1, HPIV2, HPIV3. leading cause of pediatric hospitalization (21,000/. yr. in USA). . virtually all infected by age 5; reinfections common but usually less severe. Computer Security Threats. Patricia Roy. Manatee Community College, Venice, FL. ©2008, Prentice Hall. Operating Systems:. Internals and Design Principles, 6/E. William Stallings. Computer Security. Confidentiality. Charles J. Russell, PhD. postdoc: Crystal Burke, PhD. Funding: NIAID R01AI083370. HPIV1, HPIV2, HPIV3. leading cause of pediatric hospitalization (21,000/. yr. in USA). . virtually all infected by age 5; reinfections common but usually less severe. simpler. Ex: the flu. A virus with this type of cycle makes you sick right away. What about the other type of life cycle?. The . Lysogenic. Cycle. The . lysogenic. cycle is slower and more complex. Matt Resnick, Riley . Fosnot. , Adam Fields, Brandon Archibald. Overview. What is a Virus?. A microscopic. , . nonliving. particle that survives off of . host-cells. Simple structure made up of proteins and genetic material. BY. DR. JAHNABI. MODERATOR. DR. BHASKAR GUPTA, PROF and HOD. DEPT OF DERMATOLOGY. 1. Introduction. HIV is a . lymphotropic. human retrovirus.. Acquired . - sexually, . - from blood or blood products, or . . 15/SCI05/006. . MICROBIOLOGY . MCB 311. . INTRODUCTORY VIROLOGY. WHAT IS ROTAVIRUS. Rota virus is the most common cause of . diarrhoeal. disease among infants and young children. It is a genus of a double-stranded RNA viruses in the family . Authority. : International Committee on Taxonomy of . Viruses.. . http. ://. www.ictvdb.org/index.htm. Taxonomic . groups: Order. Family. Subfamily. Viruses are not alive. A virus in an obligate intracellular parasite. Requires host cell to reproduce. Can be seen at magnifications provided by the electron microscope (they are microscopic). Characteristics of Viruses. HIV1 and slower to progress to AIDS.. Most cases are due to type1.. Modes of transmission. 1-sexual.. 2- perinatal.. 3-parenteral(occupational and intravenous drug injection).. 4- blood transfusion.. 1 EPSTEIN - FACT SHEET Overview Epstein - Barr virus (EBV), also known as human herpesvirus 4, is a member of the herpes virus family. It is one of the most common human viruses. EBV is found all . Outside . their host cells, viruses survive as . virus particles. , also known as . virions. . The . virion. is a . gene delivery . system; it contains the virus genome, and . its functions . are to protect the genome and to aid its . BVDV is an RNA virus. It is a member of the . Pestivirus. genus, belonging to the family . Flaviviridae. . 1. Two BVDV genotypes are recognized, based on the nucleotide sequence of the 5’untranslated (UTR) region; BVDV-1 and BVDV-2. BVDV-1 isolates have been grouped into 16 subtypes (a –p) and BVDV-2 has currently been grouped into 3 subtypes (a – c) .