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)?

Microbiology Viruses Difficulty: Easy
Choose an option
  • A
    productive infection
  • B
    inductive infection
  • C
    resultant infection
  • D
    all 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

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