Why Might It Be More Difficult to Prepare a Vaccine

question 47

Multiple Choice

Why might it be more difficult to prepare a vaccine against noroviruses than against rotaviruses?

• A)We haven't been able to culture noroviruses in a lab setting yet.Without a starting culture,we can't create a vaccine.
• B)Noroviruses are RNA viruses,where rotaviruses are DNA viruses.RNA viruses mutate far more easily than DNA viruses,so we COULD make a vaccine,but it would be rendered useless fairly quickly as the virus mutates.
• C)We lack a proper culturing method for large-scale production of target cells for norovirus,whereas we have such a system for the target cells of rotaviruses.Without a system to get large numbers of target cells,we can't produce a vaccine.
• D)Norovirus is much more infectious than rotavirus.As such,it's much harder to work with safety.This makes production of a vaccine too dangerous and unpredictable.

Understand the concepts of bond issuance and the effects of market interest rates on bond pricing.

Identify and calculate gains or losses on bond redemption.

Differentiate between bonds issued at a premium, face value, and discount.

Record journal entries for the issuance of bonds, including those issued at a premium or discount.

---

Definitions:

GST Inclusive

A pricing format where the price of goods and services includes the Goods and Services Tax (GST) charged.

Free Upgrades

Complimentary enhancements or versions of a software or product provided to customers who have purchased an earlier version.

Accounting Software

Computer programs that assist bookkeepers and accountants in recording and reporting a firm's financial transactions.

Relative Fair Value

A method of allocating the total purchase price in a business combination to the acquired assets and liabilities based on their fair values.