Diseases Flashcards

(62 cards)

1
Q

Tuberculosis:
rod-shaped
aerobic
slow growing

A

mycobacterium tuberculosis

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2
Q

how long does it take for mycobacterium tuberculosis to form a colony?

A

two weeks

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3
Q

in 2022, there were 1.5 cases per 100,000 people of ______ in IN

A

tuberculosis

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4
Q

contains waxes of 60 to 90 carbon mycolic cycles

A

mycobacterial cell walls

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5
Q

mycobacterial cell wall contain _________ lipids (cord factor)

A

glycolipid

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6
Q

mycobacterial cell walls are _________.
basic fuchsin dye cannot be removed from cell by aid alcohol treatment

A

acid-fast

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7
Q

tuberculosis was known as “_________”

A

consumption

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8
Q

mycobacterium tuberculosis was identified by ___________ ________

A

Robert Koch

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9
Q

tuberculosis is spread by __________-____-___________

A

person-to-person

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10
Q

tuberculosis can be spread by animal to ______ (M. bovis)

A

person

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11
Q

mycobacterium tuberculosis is a _________ pathogen

A

professional

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12
Q

always there to harm you and to replicate
always causes an immune response

A

professional pathogen

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13
Q

1-10 bacteria can lead to ______

A

disease

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14
Q
  1. host inhales
  2. immune cells recruited, phagocytose bacteria
  3. bacteria get to lung tissue
    -TB
  4. bacteria survive, replicate
    -Granulomas
    -ghon complex (calcified)
A

Primary infection

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15
Q

mycobacterium are still ____ in the ghon complex

A

alive

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16
Q

Ghon complex:
-months to decades
-immune cells fail to contain TB replication
-bacterial dissemination: lung, bloodstream, other organs

A

active disease

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17
Q

TB epidemiology:
____ of world population infected
-most common: homeless, elderly, malnourished, prisons

A

1/3

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18
Q

PPD: purified protein derivative
-injected into skin
-look for reaction

A

detection

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19
Q

tuberculin can not cause ____

A

TB

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20
Q

if you got a positive result from PPD: you follow up with

A

chest X-ray
blood culture
DNA probes

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21
Q

miracle drug to treat TB in 50s

A

streptomycin

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22
Q

if you have had the vaccine & your PPD is positive

A

then your immune system interacts w vaccine and protects you from TB

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23
Q

You can not have TB from the _____ (vaccine)

A

tuberculin

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24
Q

inadequate therapy:
non-compliance
forgetting
erratic therapy
suboptimal dosage

A

Multi-drug resistant TB

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25
Leprosy: Hansens disease
Mycobacterium leprae
26
how many cases worldwide of leprosy?
11 million
27
mycobacterium leprae incubates for ____ to _____ years
3-5
28
leprosy is an
obligate intracellular pathogen
29
what does leprosy invade
nerve or skin cells
30
leprosy attaches to _____ first, then attacks _____
skin cells, nerves
31
less aggressive and less progressive form of leprosy
tuberculoid leprosy
32
what happens when you have tuberculoid leprosy
hypersensitivity reaction skin lesions damage to nerves, skin
33
lepromatous leprosy invade skin _________
schwann cells
34
the lepromatous leprosy destroys
peripheral nerves
35
what happens when peripheral nerves are destroyed:
loss of sensation: inapparent injuries loss of bone calcium: deformities
36
rabies (rage)
rhabdovirus
37
rabies morphology
bullet
38
is rabies genome ssRNA or dsRNA
ssRNA genome
39
how is rabies transmitted
SALIVA (biting)
40
virus binds & enters into ______ cells
muscle
41
once the virus is in muscle cells, then attacks __________, then goes to spinal cord, spreads throughout _________ (salivary glands, brain)
neurons, body
42
when do symptoms start for rabies
2-6 weeks
43
negri bodies replicate in
brain
44
some symptoms of rabies are
anxiety, irritability, depression, loss of appetite, fever, sensitivity to light & sound, hydrophobia, rage
45
after the symptoms develop, how quickly do you die
2-10 days
46
awareness day for rabies is
Sept. 28th
47
plague
Yersinia pestis
48
what are the three types of plague
bubonic pneumonic septicemic
49
the plague is a _________ bacteria (enterboaceriaceae)
gram -
50
yersinia pestis does NOT infect the ___________ tract
gastrointestinal
51
yersinia pestis alters _______
genomes
52
how is the plague transmitted
flea bites to humans
53
what are natural reservoirs of the plague
rodents
54
y pestis lost functionality of ______ and ___________ important for enteric disease
adhesin, invasion
55
y pestis lost adhesion and invasion and gained ____
factors of flea survival
56
inhibit phagocytosis, prevent proinflammatory response, apoptosis of macrophages
YOPS
57
YOPS turn ____ all of what the macrophage to allow the y pestis to stay inside the flea
off
58
local cutaneous infection migration to lymph node inflammation: bubo
bubonic plague
59
spread systematically from buboes or not fever, chills, shock local hemorrhages, tissue necrosis
septicemic
60
by inhalation highly contagious by respiratory secretions fever, pneumonia, chest pain
pneumonic
61
the plague is _____ - _________ fatal
70-100%
62
pneumonic: ___ incubation, death ___ days later, _____% mortality
3, 3, 90