Infection

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What is a micro-organism?
Any organism too small to be seen by the naked eye
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What is infection?
The presence of microorganisms causing damage to body tissues
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what does MUTUALISM mean in relation to a micro-organism relationship with humans.
Benefits human & microorganism
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If intestinal bacteria is released into the blood stream, what can this cause?
sepsis/ shock/ death
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What are opportunistic microorganisms?
Microorganisms that seize the
opportunity when human defensive systems are weakened.
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What are the 4 stages of The Process of Infection?
1. Colonization
2. Invasion
3. Multiplication
4. Spread
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What does Invasion mean?
This is where an infectious agent can invade surrounding tissues/other
sites. Through developed mechanisms to penetrate tissues & avoid
host’s nonspecific and specific defences
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What are the 4 stages of the Clinical Infectious Disease Process?
1. Incubation period
2. Prodromal stage
3. Invasion period
4. Convalescence
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Describe the incubation period:
The interval between exposure to an infectious agent and the appearance of
the first symptoms.
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Describe the Convalescence Period:
Individual’s immune & inflammatory systems have in general successfully
removed infectious agent and symptoms decline.
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Can Infectious diseases be contagious during all periods of disease?
YES
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What are some clinical Manifestation of Infectious Disease?
Fatigue, malaise, weakness, loss
concentration; generalised aching &
loss appetite.
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What is the hallmark / peak of an infectious disease?
FEVER
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What is the clinical name for a fever?
Pyrexia
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Which part of the nervous system regulates body temperature?
Hypothalamus
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What are the 4 classes of Infectious Microorganisms?
1. Bacterial infection
2. Viral infection
3. Fungal infection
4. Parasitic & protozoal
infection
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How many stages are in the viral life cycle?
SIX:
1. Attachment to target cell
2. Penetration
3. Uncoating (release of viral nucleic
acid)
4. Replication
5. Assembly (formation new virons)
6. Release
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Which of the 4 classes of Infectious Microorganisms lack the green
pigment chlorophyll?
Fungus
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What is an infection with a fungus is called?
Mycosis
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What are some infection control measures?
- Hand hygiene
- Personal Protective Equipment (PPE)
- Needlestick & sharps injury prevention
- Cleaning & disinfection
- Respiratory hygiene (cough etiquette)
- Waste disposal
- Social distancing
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Other cards in this set

Card 2

Front

What is infection?

Back

The presence of microorganisms causing damage to body tissues

Card 3

Front

what does MUTUALISM mean in relation to a micro-organism relationship with humans.

Back

Preview of the front of card 3

Card 4

Front

If intestinal bacteria is released into the blood stream, what can this cause?

Back

Preview of the front of card 4

Card 5

Front

What are opportunistic microorganisms?

Back

Preview of the front of card 5
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