Week 7 Y Flashcards

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1
Q

pathogen

A

an organism participating in a parasitic
interaction i.e. an organism that causes disease.

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2
Q

colonisation

A

growth of any microorganism within a host.

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3
Q

infection

A

growth of a pathogen within a host with
concomitant damage to the host.

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4
Q

direct damage

A

Production of toxins that kill/damage cells

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5
Q

Bacterial endotoxins

A

Protects bacteria from chemical attacks

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5
Q

indirect damage

A

action of host to eliminate microbial invader
results in self-damage

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6
Q

Resevoir

A

Natural habitat of a pathogen

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7
Q

Source

A

Immediate location of host prior to infection

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7
Q

Air

A

Respiratory droplets

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8
Q

Direct contact

A

Bodily fluifd or blood

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8
Q

Vehicle

A

Water food or air

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8
Q

Vector

A

Mosquitoes or ticks can carry pathogens

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9
Q

controls directed against the source

A
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10
Q

CAUTI

A

Carheter associated urinary tract, caused by s aereus

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11
Q

CLABSIS

A

central line associated blood stream infections, affects heart vessels

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11
Q

VAP

A

Ventilation associated pneumonia

12
Q

c. diffucile

A

Causes induced diarrhoea, disrupts gut flora, treated by antibiotics

13
Q

An example of Indirect damage from chronic infection

A

Hepatitis B

Repeated IS activation causes inflammation

Chronic activation causes scarring

14
Q

How cell wall synthesis allows selective toxicity

A

Stops peptidoglycan from cross linking

15
Q

How protein synthesis allows for selective toxicity

A

Targets ribosomes

15
Q

How RNA polymerase allows for selective toxicity

A

Stops replication and transcription enzymes

15
Q

How membrane disruption allows for selective toxicity

A

Damages the membrane

15
Q

How folic acid metabolism allows for selective toxicity

A

Stops FA synthesis