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Introduction to Virology Nevada Health Sciences

Delve into the world of virology with this introductory guide. Explore the structure, replication, and classification of viruses, and learn about viral diseases and cultivation methods. Discover the intricacies of viral life cycles and essential concepts in this field.

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Introduction to Virology Nevada Health Sciences

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  1. Introduction to VirologyNevada Health Sciences

  2. Introduction to Virology • A virus is an obligate intracellular parasite containing genetic material surrounded by protein • Virus particles can only be observed by an electron microscope

  3. Introduction to Virology • The classification of viruses is based on the type of nucleic acid contained within • RNA viruses---also known as a retrovirus • DNA viruses

  4. Introduction to Virology • Recognizing the shape, size, and structure of different viruses is critical to the study of disease • Viruses have an inner core of nucleic acid surrounded by protein coat known as an envelope • Most viruses range in sizes from 20 – 250 nanometers

  5. Introduction to Virology • Replication • Viruses replicate within a host cell while utilizing the host cell’s nucleic acids.

  6. Introduction to Virology • Viral life cycle consists of six stages within the host cell • Attachment • Penetration • Uncoating • Multiplication • Assembly • Release

  7. Introduction to Virology • The cultivation of viruses is complex and includes three common methods • Chicken egg culture • Cell culture • Animal inoculation

  8. Introduction to Virology • Viral Diseases-Examples • Influenza • Rabies • HIV • Hepatitis

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