Why Do Scientists Consider HIV to Be an Emerging Virus

question 24

Multiple Choice

Why do scientists consider HIV to be an emerging virus?

• A)HIV infected humans long before AIDS first become a problem in the early 1980s,but it has now mutated to a more deadly form.
• B)HIV mutates so rapidly that the virus of today has very little similarity to the virus in the first AIDS patients from the early 1980s.
• C)HIV used to infect only chimps,but it has mutated in such a way that it now infects humans.
• D)HIV is now starting to cause diseases other than AIDS,such as rare types of cancers and pneumonias.

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Definitions:

Random Sample

A selection of individuals or items from a larger population or set in such a way that each has an equal chance of being included, ensuring the sample's representativeness of the whole.

Normal Population

A population with a data distribution that follows a normal curve, characterized by the bell shape.

Significance Level

The probability of rejecting the null hypothesis when it is true, usually set as a benchmark for testing hypotheses in research.

Decreasing

Involving a reduction in amount, size, strength, or number; moving in a descending order.