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The First Forms of Artificially Acquired Active Immunity _____________

Question 2

Multiple Choice

The first forms of artificially acquired active immunity _____________. (Select all that apply)


A) were practiced by the Chinese over 3000 years ago
B) were introduced by Egyptian physicians 5000 years ago
C) provided protection against smallpox through variolation
D) provided protection against measles through inhalation of powdered scabs

Correct Answer:

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