PPT-Hepatic infections At least 5 specific viruses (hepatitis A, B, C, D, and E viruses) can

Other viruses can affect the liver as part of their disease process Common examples are cytomegalovirus EpsteinBarr virus and yellow fever virus Less common examples are echovirus coxsackievirus. The Great Debate. Beneficial uses for Viruses. - . Gene therapy – using virus mechanics to aid in changing mutated cells. - Cowpox – vaccinations to prevent diseases. - viral symbiosis with gut tract** check facts. 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. Bassyouni. VIROLOGY. An Introduction to the Viruses. 2. . Viruses are parasites at the genetic level. They are the smallest infectious agents known. They can infect man, animals, insects, plants and bacteria. The following properties distinguish viruses from other organisms:. 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.. Dr. Mohit Bhatia. Assistant Professor. Department of Microbiology. AIIMS, Rishikesh. HEPATOTROPISM. Special affinity for or exerting a specific effect on the liver which is usually seen with chemical compounds or hepatitis viruses. Table showing the Differences between Hepatitis A, B, C, D and E.  . Hepatitis A. Hepatitis B. Hepatitis C. Hepatitis D. Hepatitis E. Aetiology (cause). Hepatitis A Virus. Hepatitis B Virus. Hepatitis C Virus. 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. . DNA viruses. Lec. : 4. Non-enveloped DNA Viruses. Non-enveloped . viruses are surrounded by a protein coating, commonly referred to as a capsid. The capsid does the job of attaching to host cells. Lec. : 4. Non-enveloped DNA Viruses. Non-enveloped . viruses are surrounded by a protein coating, commonly referred to as a capsid. The capsid does the job of attaching to host cells. .. Non-enveloped . to virology. What is a Virus?. Viruses are infectious units with diameters of about 16 nm to over 300 nm (poxviruses). Their small size makes them ultra filterable, i.e. they are not retained by bacteria-proof filters. Viruses have evolved over longtime period, and have adapted to specific organisms or their cells. The infectious virus particles, or . . . Prof. Dr. Dalya Basil. . Introduction. . The . herpesvirus. family contains several of the most important human viral pathogens. . Clinically, the . herpesviruses. diseases are particularly important causes of death among. . the elderly, people with the acquired immunodeficiency. . syndrome (AIDS), persons with chronic diseases, and. . patients. . receiving immunosuppressive drugs. : . Identify hepatitis viruses regarding their structure , epidemiology and pathogenesis of the disease and prevention methods.. Recognize the important serological makers during various stages of Hepatitis B..