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Using the specific example of how an enveloped virus docks and enters a host CD4 leukocyte, students learn details about the role of cell membrane receptors, lysogenic and lytic phases of viral replication, the precise roles and interactions of white blood cells in the non-specific and specific immune system, beneficial and deleterious genetic mutations, the challenges of community health, and the ethics of drug patents. Build relevance and meaning into your Biology curriculum with this case study of a virus that has evaded the human immune system and drug therapies for more than three decades and has impacted individuals and communities on every continent.

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