Variolation Was First Used

question 48

Multiple Choice

Variolation was first used

• A) to immunize the Chinese against smallpox.
• B) to protect individuals against the plague during the Middle Ages.
• C) to spread smallpox throughout the Native American populations.
• D) to treat individuals exposed to hepatitis.
• E) for research purposes in the 20th century.

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Definitions:

Factorial Method

A method, often implemented using recursion, to calculate the factorial of a given number, multiplying all positive integers up to that number.

Recursive Void Methods

Recursive void methods are functions that call themselves without returning a value, commonly used for tasks that require repetitive actions or to traverse recursive data structures.

Infinite Recursion

A recursion without a base case, or that never reaches it, leading to a never-ending call stack and eventually a stack overflow error.

Base Case

A condition within recursion that stops the recursion by not making any further calls, preventing infinite recursion.