The Primary Reason That an Effective HIV Vaccine Is Difficult

question 8

Multiple Choice

The primary reason that an effective HIV vaccine is difficult to produce is that

• A) HIV is not immunogenic.
• B) B cells are unable to produce antibodies against HIV.
• C) HIV mutates frequently.
• D) reverse transcriptase cleaves the vaccine.

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Definitions:

Cash Basis

A financial recording strategy where incomes and costs are documented at the time they are actually exchanged, instead of the moment they are accrued.

Services

Economic activities offered by one party to another, often involving professional support or advice rather than a tangible product.

Incurred

Refers to costs or expenses that have been consumed or utilized in the process of generating revenue.

Accrual-Basis Accounting

A bookkeeping approach that documents income and expenditures at the time they are accrued, irrespective of the actual cash transaction timing.