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Micribio > host-bacteria relationship > Flashcards

host-bacteria relationship Flashcards

1
Q

microbiome

A

all microbes good and bad in the human body

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2
Q

virulence

A

degree of pathogenicity (high virulence = good at causing disease)

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3
Q

reservoir

A

any location (human, plan, animal, soil, etc) where an infectious agent resides

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4
Q

dysbiosis

A

microbial imbalance

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5
Q

functions of normal flora

A

synthesize metabolites, break down plant fibers, inactivate toxic substances, prevent growth of pathogens, educate immune system

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6
Q

cause of thrush

A

overgrowth

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7
Q

endocarditis

A

displacement - oral streptococci in blood

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8
Q

communicable

A

human to human

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9
Q

vector

A

any living creature that transmits an infectious agent to human

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10
Q

vehicle/fomite

A

inanimate objects that harbor microorganism

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11
Q

transplacental

A

before birth

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12
Q

perinatal

A

infected birth canal

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13
Q

postnatal

A

infected milk

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14
Q

capsule

A

coats around the complement or PAMP from binding to respective receptor on macrophage or other phagocyte

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15
Q

antigenic variations

A

changes antigens to become unrecognizable to developed antibodies

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16
Q

adheres to host cell

A

pili/fimbriae and capsule

17
Q

pyogenic

A

neutrophils are predominant in inflammation

18
Q

granulomatous

A

macrophages and T cells predominant in inflammation

19
Q

Exotoxin

A

Secreted toxin

20
Q

Endotoxin

A

in cell wall

21
Q

Gram-negative bacteria

A

LPS in cell wall, endotoxin

22
Q

Immune response to endotoxin

A

IL-1 and TNF produced by macrophages

23
Q

Enterotoxin

A

Exotoxin caused by enteritis

24
Q

infectious dose

A

number of pathogens required to cause infection in a host

25
Q

immunopathogenesis

A

immune response to pathogen causes disease (not disease itself)

26
Q

M proteins

A

Strep antigen produced antibody that causes rheumatic fever

Micribio (11 decks)

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