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Flashcards in Ch 20 Deck (30)
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1

Biological features of Pseudomonas aeruginosa
-shape
-arrangement
-gram stain
-motility (motile)
-form of respiration

shape:
arrangement:
Respiration:
Gram stain: (-)

-zootonic
-single polar flagellum
-aerobic
-does not ferment lactose
-produces pigment
-highly versatile
-opportunistic-cannot cross barriers
-free-living
-oxidase (+)
-Catalase (+)

2

Diseases of Pseudomonas aeruginosa
-Cystic fibrosis
-Endotoxic shock
-Endocarditis
-Bronchopneumonia
-meningitis

(Cystic fibrosis)
(Endotoxic shock)
(Endocarditis)
(Bronchopneumonia)
(meningitis)

3

Mechanim of Disease for Pseudomonas aeruginosa
-virulence factors

(Virulence)
>Pili
>Phagocytosis
>Enzymes
>Exotoxins
-LPS
>Slime Layers

4

Transmission of Pseudomonas aeruginosa
-Method
-Habitat
-Audience
-Resevoir

(Method)

-invasive medical procedures
(Habitat)
-soil and water
-intestinal resident
(Audience)
-immunosupressed patients
-people with Catheters
(Resevoir)

5

Prevention & Treatment Pseudomonas aeruginosa

(Prevention)
-
(Treatment)
-monolocal antibiotics

6

Biological features of Bordetella pertussius
-shape
-arrangement
-gram stain
-motility (motile)
-form of respiration

shape:
arrangement:
Respiration:
Gram stain: (-)
-aerobic
-oxidase (+)

7

Diseases of Bordetella pertussius
-Cystic fibrosis
-Endotoxic shock
-Endocarditis
-Bronchopneumonia
-meningitis

(Pertussis)

>Phases
-
-
-
(acute respiratory syndrome)

8

Mechanim of Disease for Bordetella pertussius
-virulence factors

(Virulence)
>Adhesion molecules
>Toxins
-LPS
-Pertussis toxin

9

Transmission of Bordetella pertussius
-Method
-Habitat
-Audience
-Resevoir

(Method)
-direct contact
-inhaled droplets
-aerosols
(Habitat)

(Audience)
-humans and higher primates
(Resevoir)

10

Prevention & Treatment Bordetella pertussius
>Vaccine!!

(Prevention)
-Vaccine . (DTaP)
(Treatment)
-

11

Biological features of Escherichia coli
-shape
-arrangement
-gram stain
-motility (motile)
-form of respiration

shape:
arrangement:
Respiration:
Gram stain: (-)
-glucose fermentation
-nitrate reduction
-oxidase (-)
-faculatative anaerobe
-not fastidious
-opportunistic(drug resistance)

12

Diseases of Escherichia coli
-Food Intoxication
-Hemolytic uremic Syndrome

(Food Intoxication)
-intestinal hemorrhage
-diarrhea
(Hemolytic uremic) Syndrome
-caused by shiga toxin on blood and kidney
-hemolysis & kidney failure

13

Mechanim of Disease for Escherichia coli
-virulence factors

(Virulence)
>Capsule
>Endotoxin(LPS)
ENTEROTOXIGENIC
>fimbrae
>heat-liable entxotoxin
ENTEROHEMORRHAGE
>Shiga toxin
-causes hemorrhage colitis
-destory vascular tissue
-changes shape of RBC >cause necrosis
ENTEROINVASIVE
>invasion &viceration of mucosa& large intestine
-cause inflamatory disease
ENTEROPATHOGENIC
>pathogenisis not well unterstood

14

Transmission of Escherichia coli
-Method
-Habitat
-Audience
-Resevoir

(Method)
(Habitat)
-intestine
-lungs, brain, urinary tract
(Audience)
-people who use catheters
-contaminated foods
-Travelers
-crowded tropical regions
(Resevoir)

15

Prevention & Treatment Escherichia coli

(Prevention)
-disinfection
-pasteurization
-aeseptic slaughter
(Treatment)
-Bismuth salicylate
counteracts toxin and provides antimicrobic effect

16

Transmission of Salmonella
-Method
-Habitat
-Audience
-Resevoir

(Method)
-ingestion of contaminated foods
(Habitat)
-gal bladder
-intestines
-mucosa of small intestine
(Audience)
(Resevoir)
typhi only human to human

17

Prevention & Treatment Salmonella

(Prevention)
-prevent ingestion
-adaquate saitation
(Treatment)
-antibiotic treatment
-removal of gallbladder

18

Biological features of Shingella
-shape
-arrangement
-gram stain
-motility (motile)
-form of respiration

shape:
arrangement:
Respiration:
Gram stain: (-)
-non motile
-non fastidious
-lactose negative (-)

19

Diseases of Shingella
-Shingellosis
-Dysentry

(Shingellosis)
Symptoms:
-abdominal cramps
-watery stools
-villus cells of Large intestines
(Dysentry)
-stools contain blood

20

Mechanim of Disease for Shingella
-virulence factors

(Virulence)
>Shiga toxin
-nerve cell damage & damage to intestines and kidney

21

Transmission of Shingella
-Method
-Habitat
-Audience
-Resevoir

(Method)

(Habitat)
-large intestines
-Intestinal mucosal via lymphoid cells
-doesn't invade blood
(Audience)
(Resevoir)
-strictly human

22

Prevention & Treatment Shingella

(Prevention)
-consumption of contaminated foods
-proper hygine
(Treatment)
-oral antimicrobics

23

Biological features of Haemophilus influenza
-shape
-arrangement
-gram stain
-motility (motile)
-form of respiration

shape:
arrangement:
Respiration:
Gram stain: (-)
-fastidious
-sensitive to drying
-opportunistic
-faculatative anaerobe
-nonenteric
-oxidase (+)

24

Transmission of Shingella
-Method
-Habitat
-Audience
-Resevoir

(Method)
-Feces
-Food
-Fingers
-Flies
-Fomites
(Habitat)
-large intestines
-Intestinal mucosal via lymphoid cells
-doesn't invade blood
(Audience)
(Resevoir)
-strictly human

25

Mechanim of Disease for Haemophilus influenza
-virulence factors

(Virulence)
>Capsule

26

Biological features of Haemophilus influenza
-shape
-arrangement
-gram stain
-motility (motile)
-form of respiration

shape:
arrangement:
Respiration:
Gram stain: (-)
-fastidious
-sensitive to drying
-opportunistic
-faculatative anaerobe
-nonenteric
-oxidase (+)

27

Diseases of Haemophilus influenza
-acute conjunctivitis
-chancroid
-acute bacteria meningitis

(acute conjunctivitis) PINKEYE
-subconjunctival hemorrhage
(acute bacteria meningitis)
-caused by serotype B
Symptoms:
fever
-vomiting
-stiff neck

28

Mechanim of Disease for Haemophilus influenza
-virulence factors

(Virulence)
>Capsule

29

Transmission of Haemophilus influenza
-Method
-Habitat
-Audience
-Resevoir

(Method)
-Close contact with throat& nose dischrges
-fingers
-qnats
-flies
(Habitat)
-uppper respiratory tract
-vagina
(Audience)
(Resevoir)

30

Prevention & Treatment Haemophilus influenza
>Vaccine!!

(Prevention)
-Vaccine (HIB)
(Treatment)
-Antibiotic eye drops
-cephalosporin & dexaneretrasone