The Term Used to Designate How Many Bacteria or Viruses

question 20

Multiple Choice

The term used to designate how many bacteria or viruses are required to kill 50% of an experimental group of hosts is

• A) ID₅₀.
• B) LD₅₀.
• C) pathogenicity.
• D) infectivity.
• E) virulence.

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Definitions:

Inflation

The rate of increase in the general price index for goods and services, leading to a decrease in how much can be bought.

Purchasing Power

The amount of goods or services one can obtain with a single unit of currency, determining its value.

Deflation

A decrease in the general price level of goods and services, often indicating an reduction in the supply of money or credit.

Nominal Interest Rate

The percentage rate at which interest is charged or paid on a loan or investment, not adjusted for inflation.