Infection

?
What is infection?
The presence of microorganisms causing damage to the body.
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What is a pathogen?
A pathogen is defined as an organism causing disease to its host.
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What is a parasite?
A parasite is an organism that lives on or in a host organism and gets its food from or at the expense of its host.
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What are the 4 stages of progression (from point
of view of microorganism)?
1. Colonization
2. Invasion
3. Multiplication
4. Spread
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Name 4 Classes of Infectious Microorganisms
1. Bacterial infection
2. Viral infection
3. Fungal infection
4. Parasitic & protozoal
infection
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What is a microorganism?
Any organism too small to be seen by the naked eye
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What are the Four stages (from point of view of the infected individual)?
1. Incubation period
2. Prodromal stage
3. Invasion period
4. Convalescence
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Relationship with humans;
SYMBIOSIS ?
Benefits human & not harm the microorganism
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Relationship with humans;
COMMENSALISM ?
Benefits microorganism & not harm the human
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Relationship with humans;
OPPORTUNISM ?
A benign microorganism becomes pathogenic
because of decreased human host resistance
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Other cards in this set

Card 2

Front

What is a pathogen?

Back

A pathogen is defined as an organism causing disease to its host.

Card 3

Front

What is a parasite?

Back

Preview of the front of card 3

Card 4

Front

What are the 4 stages of progression (from point
of view of microorganism)?

Back

Preview of the front of card 4

Card 5

Front

Name 4 Classes of Infectious Microorganisms

Back

Preview of the front of card 5
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