PPT-12 Epidemiology of viruses

Lecture 5 Dr Abbas Arrak 314 BASIC DEFINITIONS AND METHODS Epidemiology deals with the occurrence of diseases in populations Incidence . DNA Enveloped . Viruses. I. Objectives. In this lecture you will learn about properties, pathogenesis, clinical picture and diagnosis of: . Herpesviruses. . (HHVs 1 to 8). Poxviruses. Smallpox Virus. Principles of Epidemiology. A. Epidemiology is the study of the factors influencing the frequency and distribution of diseases. 1. communicable diseases – diseases that can be transmitted from one host to another . . 1. A term derived from the Greek:.  . . epi. . : on, upon. demos . : the people. logos . : the study of .  .  . (Webster's Unabridged Dictionary).  . Dictionary definition of epidemiology. Introduction. Paul Rota. Centers for Disease Control. . Accelerating Progress towards Measles and Rubella Elimination. Hotel Royal, Geneva, Switzerland, 21-23 June 2016. National Center for Immunization & Respiratory Diseases. You will need to wear gloves for all class activities today.. Pick a random identification card up from the front desk (record this ID code in Table 3).. Switch cards with your partners (record your new code in Table 3).. EQ: Why are viruses considered to be non-
living?. Characteristics:. *Nonliving particles made of . nucleic acid. and a . protein coat . enlosed in a . capsid. shell... *In order to reproduce, all viruses must have a . 8.1 What Is a Virus? Plus 9.1, 9.2 (parts). 8.2 Structure of the Virion. 8.3 Overview of the Virus Life Cycle. 8.8 . Temperate Bacteriophages and . Lysogeny. 8.10, 9.6, 9.7 Overview of Animal Viruses. Claude MUVUNYI M.D., Ph.D.. Viral diseases. The relative susceptibility of a person and the severity of the disease depend on factors such as: . the . nature of exposure; . the . immune status, . age. DNA . is a molecule in your cells’ nuclei that can be . used as instructions by your cells . to make new cells, and pigments for your hair and skin.. What is DNA again?. The DNA instructions are really a pattern of 4 different chemicals read as a code by the cell’s nucleus.. 854IntroductionHippocrates around 46031370 BCE tell what epidemic diseases will a29ack and what each individual will be in danger of experiencing from the change of regimen148 Hence he introduced the . . The process of transfer of virus into host is referred as . TRANSMISSION. and this is an important step in the life cycle of viruses.. Person to person infections are said to be . HORIZONTAL. . . Alkhaldi. Community Medicine 2015/ 1016. Faculty of Medicine, The University of Jordan. 2. Definitions…. Public health. The science & art of . . P. reventing disease, . prolonging life, . As a group discuss for 1 minute. Be able to defend your answer for the class!. Are . VIRUSES. alive?. Growth and Development. Reproduce. Change Over Time. Obtain and Use Energy. Maintain Homeostasis. Department of Epidemiology. Program Overview . July 5, 2018.  . Introductions. Dr. Albert Hofman, MD, PhD. Chair, Department of Epidemiology. ahofman@hsph.harvard.edu. Deborah Blacker, MD, Sc.D.. Deputy Chair, Department of Epidemiology.