character: Cytotoxic T-Cell
topic: Role in killing infected cells
grade: 6
subject: Science
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character: Immune System
topic: Overview of how T-cells work
grade: 6
subject: Science
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character: Virus
topic: How viruses infect cells
grade: 6
subject: Science
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character: Antibodies
topic: Difference between antibodies and T-cells
grade: 6
subject: Science
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