Which of the Following Series Best Reflects What We Know

question 22

Multiple Choice

Which of the following series best reflects what we know about how the flu virus moves between species?

• A) An avian flu virus undergoes several mutations and rearrangements such that it is able to be transmitted to other birds and then to humans.
• B) The flu virus in a pig is mutated and replicated in alternate arrangements so that humans who eat the pig products can be infected.
• C) A flu virus from a human epidemic or pandemic infects birds; the birds replicate the virus differently and then pass it back to humans.
• D) An influenza virus gains new sequences of DNA from another virus, such as a herpesvirus; this enables it to be transmitted to a human host.
• E) An animal such as a pig is infected with more than one virus, genetic recombination occurs, the new virus mutates and is passed to a new species such as a bird, the virus mutates and can be transmitted to humans.

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Definitions:

Dosage-Response Curve

A graph showing the relationship between the dose of a drug and the effect it produces, helping to determine the optimal dose.

Atypical Medications

Psychiatric drugs that differ from traditional medications in their chemical structure or mechanism of action, often used to treat symptoms of mental disorders.

Extrapyramidal Side Effects

Unwanted movement disorders or symptoms that can occur as a result of certain psychiatric and neurological medications.

First-Generation Antipsychotic

A class of older antipsychotic medications primarily used to treat psychotic disorders, known for their dopaminergic blockade mechanism and side effects like extrapyramidal symptoms.