Why Has the Development of an HIV Vaccine Been Very

question 92

Multiple Choice

Why has the development of an HIV vaccine been very difficult?

• A)because the virus produces enzymes that destroy the vaccine
• B)because the virus is a DNA virus, and vaccines work against only RNA viruses
• C)because the virus has no antigens to target
• D)because the viral coat antigens change frequently as the virus replicates

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Definitions:

Whole-life Insurance

Whole-life Insurance is a type of permanent life insurance policy that remains in effect for the insured's whole life and includes an investment component known as the cash value.

Long-term Bonds

Bonds with maturities typically longer than 10 years, offering the potential for higher yields but also greater price volatility and interest rate risk.

Tax-loss Selling

The practice of selling securities at a loss to offset a capital gains tax liability.

Capital Losses

The loss incurred when a capital asset is sold for less than its original purchase price.