Viral-Host Interaction and Replication of Viruses

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What are the three main divisions of viral host interactions according to the text?

Host barriers, viral replication, pathogenesis of viral infections (correct)

Host immunity, viral spread, viral entry

Viral replication, host resistance, immune response

Viral defense, host recovery, viral pathogenesis

How do host defenses act on virus replication according to the text?

By inducing viral replication

By directly attacking the virus

By altering or killing the infected cell (correct)

By promoting the spread of the virus

What are the general principles of virus-host interactions according to the text?

Inherent barriers, humoral components, cellular components (correct)

Host barriers, immune response, viral dose

Induced barriers, specific defenses, viral resistance

Viral entry, host recovery, pathogenesis

What does recovery from viral infections depend on according to the text?

The interactions between virus and host Signup and view all the answers

What is the function of non-specific host defenses according to the text?

To limit infection or prevent infection Signup and view all the answers

Which of the following can help to inhibit virus replication by decreasing virus replication?

Fever Signup and view all the answers

What is the principal source of Interferon Alpha?

Leukocytes Signup and view all the answers

What is the mechanism of action of antibody + complement in damaging the virus envelope?

Blocks entry into cell Signup and view all the answers

In viral replication, what is the physical separation of the viral nucleic acid from the outer structural components of the virus called?

Uncoating Signup and view all the answers

Which type of interferon has more than 20 genes?

Interferon Alpha Signup and view all the answers

What is the effect of antibody alone in viral replication?

Blocks uncoating of virus Signup and view all the answers

Which step in viral replication involves the synthesis of viral protein?

Translation Signup and view all the answers

What is the mode of entry for non-enveloped viruses into the cell?

Direct penetration Signup and view all the answers

Which component involved in resistance to viral infections is NOT specific?

'Cytokines' Signup and view all the answers

'ADCC' (Antibody Dependent Cell-mediated Cytotoxicity) can be carried out by which cells?

'Natural killer cells' Signup and view all the answers

What are the early nonspecific responses in viral infections targeted at?

Phagocytosis Signup and view all the answers

Which component is NOT involved in host effector functions in viral infections?

Ciliated epithelium Signup and view all the answers

What is the primary determinant for the variation in host defense mechanisms against a viral infection?

The virus, dose, and portal of entry Signup and view all the answers

Which type of defense functions early in the encounter with a virus to prevent or limit infection?

Non-specific host defenses Signup and view all the answers

What is the primary function of antibody + complement in relation to damaging the virus envelope?

Damaging the virus envelope Signup and view all the answers

Which component is involved in resistance to viral infections and is specific in nature?

Humoral components Signup and view all the answers

What is the mode of action of Interferon Alpha in inhibiting virus replication?

Inhibiting virus replication by decreasing virus replication Signup and view all the answers

What is the principal source of Interferon Alpha during viral infections?

Infected host cells Signup and view all the answers

What is the role of low pH in inhibiting viral infections?

Inactivates viruses by lowering their pH sensitivity Signup and view all the answers

Which component is NOT a humoral component involved in resistance to viral infections?

Natural killer cells Signup and view all the answers

What is the principal source of Interferon Beta?

Fibroblasts Signup and view all the answers

What is the mechanism of action of antibody + complement in damaging the virus envelope?

Opsonization of virus Signup and view all the answers

What step in viral replication involves the synthesis of viral protein?

Transcription Signup and view all the answers

What is the effect of antibody alone in viral replication?

Blocks uncoating of virus Signup and view all the answers

Which type of interferon has pH2 stability?

Interferon Alpha Signup and view all the answers

'ADCC' (Antibody Dependent Cell-mediated Cytotoxicity) can be carried out by which cells?

Natural killer cells and T lymphocytes Signup and view all the answers

What is the mode of entry for non-enveloped viruses into the cell?

Direct penetration Signup and view all the answers

What are the early nonspecific responses in viral infections targeted at?

Virus replication Signup and view all the answers

What does recovery from viral infections depend on according to the text?

Effectiveness of host defenses Signup and view all the answers

What are the general principles of virus-host interactions according to the text?

Virus replication and assembly of new virus particles Signup and view all the answers

Viral-Host Interaction and Replication of Viruses

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Questions and Answers

What are the three main divisions of viral host interactions according to the text?

How do host defenses act on virus replication according to the text?

What are the general principles of virus-host interactions according to the text?

What does recovery from viral infections depend on according to the text?

What is the function of non-specific host defenses according to the text?

Which of the following can help to inhibit virus replication by decreasing virus replication?

What is the principal source of Interferon Alpha?

What is the mechanism of action of antibody + complement in damaging the virus envelope?

In viral replication, what is the physical separation of the viral nucleic acid from the outer structural components of the virus called?

Which type of interferon has more than 20 genes?

What is the effect of antibody alone in viral replication?

Which step in viral replication involves the synthesis of viral protein?

What is the mode of entry for non-enveloped viruses into the cell?

Which component involved in resistance to viral infections is NOT specific?

'ADCC' (Antibody Dependent Cell-mediated Cytotoxicity) can be carried out by which cells?

What are the early nonspecific responses in viral infections targeted at?

Which component is NOT involved in host effector functions in viral infections?

What is the primary determinant for the variation in host defense mechanisms against a viral infection?

Which type of defense functions early in the encounter with a virus to prevent or limit infection?

What is the primary function of antibody + complement in relation to damaging the virus envelope?

Which component is involved in resistance to viral infections and is specific in nature?

What is the mode of action of Interferon Alpha in inhibiting virus replication?

What is the principal source of Interferon Alpha during viral infections?

What is the role of low pH in inhibiting viral infections?

Which component is NOT a humoral component involved in resistance to viral infections?

What is the principal source of Interferon Beta?

What is the mechanism of action of antibody + complement in damaging the virus envelope?

What step in viral replication involves the synthesis of viral protein?

What is the effect of antibody alone in viral replication?

Which type of interferon has pH2 stability?

'ADCC' (Antibody Dependent Cell-mediated Cytotoxicity) can be carried out by which cells?

What is the mode of entry for non-enveloped viruses into the cell?

What are the early nonspecific responses in viral infections targeted at?

What does recovery from viral infections depend on according to the text?

What are the general principles of virus-host interactions according to the text?

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