Herd Immunity (2019) - This film explains how vaccines protect not only individuals, but entire populations through herd immunity. A historical example is the eradication of smallpox. This is part two of a three-part film series on vaccines.

Herd Immunity (2019)

This film explains how vaccines protect not only individuals, but entire populations through herd immunity. A historical example is the eradication of smallpox. This is part two of a three-part film series on vaccines.

Herd Immunity (2019)

This film explains how vaccines protect not only individuals, but entire populations through herd immunity. A historical example is the eradication of smallpox. This is part two of a three-part film series on vaccines.

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