Podcast
Questions and Answers
What factors can promote viral disease?
What factors can promote viral disease?
- Poor nutritional status, virulence (correct)
- Healthy nutritional status, innate immunity
- Genotype, physicochemical barriers
- Tropism, adaptive immunity
How does malnutrition affect the body's ability to fight disease?
How does malnutrition affect the body's ability to fight disease?
- Enhances adaptive immunity
- Strengthens physicochemical barriers
- Promotes virion production
- Makes the immune system less effective (correct)
What can make some individuals more prone to infection and disease?
What can make some individuals more prone to infection and disease?
- Innate immunity
- Healthy nutritional status
- Expression of specific MHC-I alleles (correct)
- Physicochemical barriers
Do all viral infections result in disease?
Do all viral infections result in disease?
What is the main difference between a productive viral infection and a non-productive or abortive viral infection?
What is the main difference between a productive viral infection and a non-productive or abortive viral infection?
How can non-productive infections by viruses lead to disease?
How can non-productive infections by viruses lead to disease?
Which virus is an example of a non-productive infection leading to disease?
Which virus is an example of a non-productive infection leading to disease?
What can cause disease in immunocompromised hosts in the case of BK virus?
What can cause disease in immunocompromised hosts in the case of BK virus?
What is the pathogenesis of cervical carcinoma caused by some human papillomavirus types?
What is the pathogenesis of cervical carcinoma caused by some human papillomavirus types?
Why do some productive infections only cause disease in immunocompromised hosts?
Why do some productive infections only cause disease in immunocompromised hosts?
What is a crucial requirement for a virus to overcome host defenses?
What is a crucial requirement for a virus to overcome host defenses?
How can damage occur to the host during a viral infection?
How can damage occur to the host during a viral infection?
What determines the outcome of a viral infection in a host?
What determines the outcome of a viral infection in a host?
What can lead to direct cell/tissue/organ/system destruction during a viral infection?
What can lead to direct cell/tissue/organ/system destruction during a viral infection?
What distinguishes the first pattern of persistent infection from the acute infection?
What distinguishes the first pattern of persistent infection from the acute infection?
Which virus is an example of a pathogen that remains latent and can reactivate to cause recurring disease?
Which virus is an example of a pathogen that remains latent and can reactivate to cause recurring disease?
What characterizes the cyclic, or periodic, disease pattern of infection?
What characterizes the cyclic, or periodic, disease pattern of infection?
Which virus is an example of a pathogen that causes both varicella (chickenpox) and later in life, zoster (shingles)?
Which virus is an example of a pathogen that causes both varicella (chickenpox) and later in life, zoster (shingles)?
Which viruses are typical examples of pathogens with a continuous buildup after recovery leading to recurring disease?
Which viruses are typical examples of pathogens with a continuous buildup after recovery leading to recurring disease?
What is characteristic of prion diseases in terms of the accumulation of pathogens?
What is characteristic of prion diseases in terms of the accumulation of pathogens?
What is the stage responsible for viral amplification and spread to secondary site(s) of infection?
What is the stage responsible for viral amplification and spread to secondary site(s) of infection?
Which stage is responsible for limiting disease and/or contributing to disease?
Which stage is responsible for limiting disease and/or contributing to disease?
When can transmission of a viral disease occur?
When can transmission of a viral disease occur?
Which phase is usually associated with characteristic signs and symptoms of the disease?
Which phase is usually associated with characteristic signs and symptoms of the disease?
In which stage can symptoms linger and wane?
In which stage can symptoms linger and wane?
What do you call infections that can go completely undetected during some or all of the stages?
What do you call infections that can go completely undetected during some or all of the stages?
Which pattern is characterized by the acquisition of a pathogen that multiplies to the extent of causing disease and is then completely eliminated by the host’s immune system?
Which pattern is characterized by the acquisition of a pathogen that multiplies to the extent of causing disease and is then completely eliminated by the host’s immune system?
Which type of infection occurs without overt disease due to the host’s immune system clearing the pathogen prior to the appearance of symptoms?
Which type of infection occurs without overt disease due to the host’s immune system clearing the pathogen prior to the appearance of symptoms?
What are examples of infections that fall into the category of acute subclinical or asymptomatic infections?
What are examples of infections that fall into the category of acute subclinical or asymptomatic infections?
What type of progression does Hepatitis B virus present when the acute disease is resolved?
What type of progression does Hepatitis B virus present when the acute disease is resolved?
What type of individuals does BK virus cause disease in?
What type of individuals does BK virus cause disease in?
Which of the following factors can tip the balance in favor of illness or exacerbate it?
Which of the following factors can tip the balance in favor of illness or exacerbate it?
What is the main outcome of a productive viral infection?
What is the main outcome of a productive viral infection?
Which haplotypes are more prone to infection and disease with some agents than others?
Which haplotypes are more prone to infection and disease with some agents than others?
What can lead to disease in immunocompromised hosts in the case of BK virus?
What can lead to disease in immunocompromised hosts in the case of BK virus?
What is the characteristic of infections that fall into the category of acute subclinical or asymptomatic infections?
What is the characteristic of infections that fall into the category of acute subclinical or asymptomatic infections?
What distinguishes the first pattern of persistent infection from the acute infection?
What distinguishes the first pattern of persistent infection from the acute infection?
What can cause direct destruction to cell/tissue/organ/system during a viral infection?
What can cause direct destruction to cell/tissue/organ/system during a viral infection?
What determines whether a viral infection will yield progeny virions or not?
What determines whether a viral infection will yield progeny virions or not?
What can make it easier for some individuals to get infected and suffer from disease?
What can make it easier for some individuals to get infected and suffer from disease?
What are the examples of factors guarding from disease?
What are the examples of factors guarding from disease?
What is irrelevant when considering viruses from a viral perspective?
What is irrelevant when considering viruses from a viral perspective?
What is one possible outcome from a viral perspective?
What is one possible outcome from a viral perspective?
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