This chapter begins with the evolution of viruses, viral morphology and classification. Steps in viral infection are covered along with various host and virus types. Prevention and treatment of viruses is outlined in this chapter. Finally prions and viroids are covered at the conclusion of the chapter.
Learning Objectives (TAG Assignment - III3)
Viral Evolution, Morphology, and Classification
- Virus Infections and Hosts
- Prevention and Treatment of Viral Infections
- Other Acelluar Entities: Prions and Viroids
Recommended Textbook Resources
OpenStax: Biology 2e
Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts.
The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.
Student Assessment Activities
1. In-Class Group Project:
Prepare a 5 slide minimum presentation on one of the following viruses.
- Epstein-Barr virus
*Include: A) a brief summary of the mechanism of viral infection; B) signs and symptoms of infection; C) potential treatments and/or vaccines D) any other interesting information. Here is a good starting resource: https://www.merckmanuals.com/professional/infectious-diseases/viruses/overview-of-viruses
*Students may also choose to create a 3D model of the virus to aid in their explanation of how the virus infects the host cell. This may be offered for extra credit.
2. In-class Discussion:
Assign students to the for and against vaccinations debate. Ask them to prepare three points before class. Divide the class into the for and against groups. The professor will act as a facilitator for the class discussion. The instructor will need to be prepared with facts and stats to counter any false or misleading information. The goal at the end of the exercise will be to ensure students understand how vaccines work. Additionally students should leave with knowledge about how the misinformation surrounding autism and vaccinations arose and why this link has never been reliably demonstrated.
3. At-home Paper:
Students will research and write a 3-5 page paper on one of the following topics:
- How bacterial and viral infections are treated differently and why
- What antibiotics treat and how they function
- Antibiotic resistance and how it arises
- Transfer of specific viruses from one species host to another
*Include: A) a brief summary of the topic; B) signs and symptoms of infection for your example virus and/or bacterial infection; C) any other interesting information.