The Infectious Dose

question 41

Multiple Choice

The infectious dose

• A)is the same for all microorganisms.
• B)may be 10-100 cells for Salmonella.
• C)is expressed as ID50.
• D)is defined as the number of microbes necessary to ensure infection.
• E)is expressed as ID50 AND is defined as the number of microbes necessary to ensure infection.

---

Definitions:

Screen

A term broadly used to describe a barrier or surface on which images or data are displayed, as well as the process of evaluating or testing something.

Word-Superiority Effect

The phenomenon that words are easier to perceive and recognize accurately than individual letters or non-words, highlighting the influence of contextual knowledge in perception.

Reading

The process of understanding and interpreting written symbols to extract meaning, often associated with learning and acquiring knowledge.

Letters

Characters in an alphabet used in written language to represent sounds or form words.