What Happens to a Virus That Manages to Cross the Blood-Brain

question 42

Multiple Choice

What happens to a virus that manages to cross the blood-brain barrier and enter the brain?​

• A)It is quickly destroyed by natural killer cells.
• B)​It gets trapped in a neuron, and then both are destroyed by natural killer cells.
• C)​It gets trapped in a glial cell, and then both are destroyed by natural killer cells.
• D)It remains there and may cause negative effects several years later.

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Definitions:

Anecdotal Evidence

Information based on personal accounts, stories, or experiences, rather than on scientifically collected data or statistics.

Observational Study

A study wherein researchers observe and record data without manipulating any variables, in contrast to an experimental study.

Matched Pairs

A study design in which subjects are paired based on specific characteristics, with one in each pair receiving treatment and the other not.

Blocking

A technique in experimental design used to reduce the effects of nuisance variables by grouping subjects into blocks based on these variables.