Modes of virus release and persistence: How is the process called in which infected cells continue to divide and simultaneously release mature virions from their surface for an extended period (for example, by budding)?
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Aproductive infection
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Binductive infection
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Cresultant infection
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Dall of these
Answer
Correct Answer: productive infection
Explanation
Introduction / Context:Viruses can exit cells by lysis, budding, or exocytosis. Some infections are acute and cytolytic; others are persistent, with cells remaining viable while releasing virions. Naming these patterns correctly is key to understanding pathogenesis and antiviral targets.
Given Data / Assumptions:
- Cells continue reproducing (non-lytic infection).
- Virions are continuously extruded (e.g., budding through the plasma membrane).
- The term sought should reflect ongoing virion production.
Concept / Approach:A productive infection is one in which new virions are produced. When this production is sustained without immediate cell death, the scenario is often called a persistent productive infection. Among the given options, “productive infection” is the correct, standard term; the other phrases are not established virology terms.
Step-by-Step Solution:Recognize that virion output occurs continuously and the cell survives.Map to the established terminology: productive (and persistent) infection.Choose “productive infection” as the best fitting option.
Verification / Alternative check:Many enveloped viruses (e.g., hepatitis B, some retroviruses) bud from cells without immediate lysis, exemplifying productive persistence.
Why Other Options Are Wrong:“Inductive infection” and “resultant infection” are not standard terms; “all of these” therefore cannot be correct.
Common Pitfalls:Confusing productive, persistent, latent, and chronic terminology; assuming all productive infections are lytic.
Final Answer:productive infection