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Flashcards in Ch 18 Deck (35)
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1

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

>S. aeureus
>S. epidermidis
>S. saprphytrous

shape:
arrangement:
Respiration:
Gram stain: (+)
-catalase (+)
-faculatative anaerobe
-coagulas (+)
-can digest proteins&lipids

-pyogenic
-proteolysis

2

Diseases of Staphylococci
-Foliculitis
-Furuncle
-Carbuncle
-Impetigo

(Foliculitis)
(Furuncle)
(Carbuncle)
(Impetigo)

3

Mechanim of Disease for Staphylococci
-virulence factors

(Virulence)
>Toxins
-entertoxins
-exfoliative toxins
-TSS Toxins

>Enzymes
-coagulase
-hyaluronidase
-staphylokinase
-nuclease
-lipase
-penicilinase

4

Transmission of Staphylococci
-Method
-Habitat
-Audience
-Resevoir

(Method)
-
(Habitat)
-anterior nares
-nasopharynx
-intestines
-skin
(Audience)
-immunodefficient
-nurseries
-preexisting infection
tissue injusry
(Resevoir)
-

5

Prevention & Treatment Staphylococci

(Prevention)
-proper handwashing
-proper disposal of discharge
(Treatment)
-surgical removal of abscess

6

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

shape:
arrangement:
Respiration:
Gram stain: (+)
-faculatative anaerobe
-catalase (-)
-fastidious
-capsule

-proteolysis

7

Diseases of Streptococcus pyogenes
-Rheumatic Fever
-Acute glomerulonephitis
-Streptococcal Pharyngitis
-Streptococcal impetigo
-erysipeials

(Rheumatic Fever)
(Acute glomerulonephitis)
(Streptococcal Pharyngitis)
(Streptococcal impetigo)
(Erysipeials)

8

Mechanim of Disease for Streptococcus pyogenes
-virulence factors

(Virulence)
>C-carbohydrate
>fimbrae
>M-protein
>C5a protease
>Hyaluronic acid capsule

9

Transmission of Streptococcus pyogenes
-Method
-Habitat
-Audience
-Resevoir

(Method)
-contact
-droplets
-fomites
(Habitat)
-throat
(Audience)
-5-15 year old children
(Resevoir)

10

Prevention & Treatment Streptococcus pyogenes

(Prevention)
-
(Treatment)
-penecillin
-neutralizing antitoxin against erythrogenic toxin

11

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

Alpha hemolytic

shape:
arrangement:
Respiration:
Gram stain: (+)
-alpha-hemolytic
-optochin sensitive

12

Diseases of Streptococcus pneumococcus
-Menginitis
-Pneumonia
-otitis media
-pleuritis
-edocarditis

(Menginitis)
-
(Pneumonia)
-
(otitis media)
-

13

Mechanim of Disease for Streptococcus pneumococcus
-virulence factors

(Virulence)
>Capsule

14

Transmission of Streptococcus pneumococcus
-Method
-Habitat
-Audience
-Resevoir

(Method)
-
(Habitat)
-nasopharynx
(Audience)
-
(Resevoir)
-
rarely survives outside host

15

Prevention & Treatment Streptococcus pneumococcus
>Vaccine!!

(Prevention)
-Vaccine
(Treatment)
-Penicillin

16

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

Beta Hemolytic

shape:
arrangement:
Respiration:
Gram stain: (+)
-Beta hemolytic
-Camp+ facor

17

Diseases of Streptococcus agalactiae
-Meningitis
-endocarditis
-wound/skin infections

(Meningitis)
-
(endocarditis)
-
(wound/skin infections)
-

18

Mechanim of Disease for Streptococcus agalactiae
-virulence factors

(virulence)
-

19

Transmission of Streptococcus agalactiae
-Method
-Habitat
-Audience
-Resevoir

(Method)
-
(Habitat)
-vagina
(Audience)
-
(Resevoir)
-

20

Prevention & Treatment Streptococcus agalactiae

(Prevention)
-screen pregnant women
(Treatment)
-Penecillin

21

Biological features of Alpha-hemolytic Streptococci:Viridans
-shape
-arrangement
-gram stain
-motility (motile)
-form of respiration

shape:
arrangement:
Respiration:
Gram stain: (+)
-thick biofilm
-opportunistic
-no toxins. no enzymes.
-invasive

22

Diseases of Alpha-hemolytic Streptococci:Viridans
-Subacute endocarditis
-Dental complications

(Subacute endocarditis)
-bloodborne bacteria settle in heart lining
(Dental complications)
-bacteremia
-meningitis
-tooth abscess

23

Mechanim of Disease for Alpha-hemolytic Streptococci:Viridans
-virulence factors

(Virulence)
>thick biofim

24

Transmission of Alpha-hemolytic Streptococci:Viridans
-Method
-Habitat
-Audience
-Resevoir

(Method)
-
(Habitat)
>oral cavity
-nasopharynx
-genital tract
-skin
(Audience)
-
(Resevoir)
-

25

Prevention & Treatment Alpha-hemolytic Streptococci:Viridans

(Prevention)
-
(Treatment)
-

26

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

shape:
arrangement:
Respiration:
Gram stain: (-)
-catalase (+)
-oxidase (+)
-strict parasite
-does not ferment maltose
-doesn't grow on agar

27

Diseases of Neisseria gonorrhoeae
-Gonorrhea
-Urearthritis
-Salphgitis (PIV)
-Keratitis

(Gonorrhea)
Symptoms:
-pharyngitis
-gingavitus
(Urearthritis)
-
(Salphgitis (PIV))
-
(Keratitis)
-

28

Mechanim of Disease for Neisseria gonorrhoeae
-virulence factors

(Virulence)
>Enzyes
-Protease
>fimbrae
-attatchment, slow phagocytosis

29

Transmission of Neisseria gonorrhoeae
-Method
-Habitat
-Audience
-Resevoir

(Method)
-
(Habitat)
-Genital & extragenital
-Urethra in men
-Vagina in women
(Audience)
-
(Resevoir)
-only humans

30

Prevention & Treatment Neisseria gonorrhoeae

(Prevention)
-Endotoxin
-safe sex
(Treatment)
-Penecilin
-multidrugtreatment