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Virology

Virology. Viral Structure. Nucleic Acid DNA or RNA Capsid (protein coat). Viral Structure. Envelope Forms when virus takes host membrane with it upon release. Are Viruses Alive?. How Virulent Viruses Work. Attachment Entry Replication Assembly Release (Lysis). Lytic Cycle.

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Virology

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  1. Virology

  2. Viral Structure • Nucleic Acid • DNA or RNA • Capsid (protein coat)

  3. Viral Structure • Envelope • Forms when virus takes host membrane with it upon release

  4. Are Viruses Alive?

  5. How Virulent Viruses Work • Attachment • Entry • Replication • Assembly • Release (Lysis) Lytic Cycle

  6. How Temperate Viruses Work • Attachment • Entry • Lysogeny • Replication • Assembly • Release (Lysis) Lysogenic Cycle

  7. Viral Pathology • Influenza • Respiratory tract • Acquired Immunodeficiency Syndrome • Attacks immune system leaving victim vulnerable • Cancer • Some viruses mutate DNA to upset cell cycle

  8. Treatment • Vaccines • Virus unable to replicate in host • Antiviral Drugs • Inhibit nucleic acid synthesis • Inhibit capsid synthesis

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