Podcast
Questions and Answers
In order to survive, pathogens require a source of nutrients, protection from harmful elements and:
In order to survive, pathogens require a source of nutrients, protection from harmful elements and:
- Dissemination through the oesophagus
- Colonization of a niche in the host (correct)
- Access to the vascular system
- None of the above
Some enveloped viruses use antigenic variation which makes it difficult for the immune system to recognise different strains of the virus. Which type of antigenic variation results in a major change in spike proteins due to gene reassortment?
Some enveloped viruses use antigenic variation which makes it difficult for the immune system to recognise different strains of the virus. Which type of antigenic variation results in a major change in spike proteins due to gene reassortment?
- Antigenic drift
- Antigenic shift (correct)
- Antigenic draft
- Antigenic shaft
Which pathogen type is always a member of the normal microbiota and only causes disease in an immunocompromised host?
Which pathogen type is always a member of the normal microbiota and only causes disease in an immunocompromised host?
- Primary pathogen
- Discreet pathogen
- Opportunistic pathogen (correct)
- Individual pathogen
Which type of pathogen is an environmental microbe that is able to cause disease in an otherwise healthy individual?
Which type of pathogen is an environmental microbe that is able to cause disease in an otherwise healthy individual?
Virulence factors can be described as:
Virulence factors can be described as:
What kind of virulence factors are proteases, nucleases, phospholipases and glycohydrolases?
What kind of virulence factors are proteases, nucleases, phospholipases and glycohydrolases?
Which of these virulence factors act as adhesins?
Which of these virulence factors act as adhesins?
Which of these virulence factors assist in promoting colonization of the host?
Which of these virulence factors assist in promoting colonization of the host?
Which of these virulence factors enable damage to be caused to the host?
Which of these virulence factors enable damage to be caused to the host?
Which virulence factor does Porphyromonas Gingivalis use which leads to disregulated immunity in the gingival tissues and breakdown of the structures around the teeth?
Which virulence factor does Porphyromonas Gingivalis use which leads to disregulated immunity in the gingival tissues and breakdown of the structures around the teeth?
Flashcards
Pathogen survival requirements
Pathogen survival requirements
A pathogen needs nutrients, protection, and the ability to establish itself within the host.
Antigenic shift
Antigenic shift
Major change in viral spike proteins due to gene reassortment, leading to new viral strains.
Opportunistic pathogen
Opportunistic pathogen
Normal microbiota member that causes disease only in immunocompromised individuals.
Primary pathogen
Primary pathogen
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Virulence factors
Virulence factors
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Exoenzymes
Exoenzymes
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Adhesins
Adhesins
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Colonization via adhesins
Colonization via adhesins
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Host damage virulence factors
Host damage virulence factors
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Porphyromonas gingivalis virulence factors
Porphyromonas gingivalis virulence factors
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