Ch 18 Flashcards by Nadia Ruiz

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&amp;lipids

pyogenic
proteolysis

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Diseases of Staphylococci

Foliculitis
Furuncle
Carbuncle
Impetigo

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

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Mechanim of Disease for Staphylococci

-virulence factors

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

> Enzymes

coagulase
hyaluronidase
staphylokinase
nuclease
lipase
penicilinase

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Transmission of Staphylococci

Method
Habitat
Audience
Resevoir

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

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Prevention & Treatment Staphylococci

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

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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

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Diseases of Streptococcus pyogenes

Rheumatic Fever
Acute glomerulonephitis
Streptococcal Pharyngitis
Streptococcal impetigo
erysipeials

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

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Mechanim of Disease for Streptococcus pyogenes

-virulence factors

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

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Transmission of Streptococcus pyogenes

Method
Habitat
Audience
Resevoir

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

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Prevention & Treatment Streptococcus pyogenes

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

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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

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Diseases of Streptococcus pneumococcus

Menginitis
Pneumonia
otitis media
pleuritis
edocarditis

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

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Mechanim of Disease for Streptococcus pneumococcus

-virulence factors

(Virulence)

>Capsule

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Transmission of Streptococcus pneumococcus

Method
Habitat
Audience
Resevoir

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

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Prevention & Treatment Streptococcus pneumococcus

>Vaccine!!

(Prevention)
-Vaccine
(Treatment)
-Penicillin

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Biological features of Streptococcus agalactiae

shape
arrangement
gram stain
motility (motile)
form of respiration

Beta Hemolytic

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

Diseases of Streptococcus agalactiae

Meningitis
endocarditis
wound/skin infections

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

Mechanim of Disease for Streptococcus agalactiae

-virulence factors

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(virulence)

Transmission of Streptococcus agalactiae

Method
Habitat
Audience
Resevoir

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

Prevention & Treatment Streptococcus agalactiae

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

Biological features of Alpha-hemolytic Streptococci:Viridans

shape
arrangement
gram stain
motility (motile)
form of respiration

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

Diseases of Alpha-hemolytic Streptococci:Viridans

Subacute endocarditis
Dental complications

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

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

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(Virulence)

>thick biofim

Transmission of Alpha-hemolytic Streptococci:Viridans

Method
Habitat
Audience
Resevoir

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

Prevention & Treatment Alpha-hemolytic Streptococci:Viridans

(Prevention) - (Treatment) -

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 ```

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

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

Mechanim of Disease for Neisseria gonorrhoeae | -virulence factors

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

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

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

Prevention & Treatment Neisseria gonorrhoeae

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

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

``` shape: arrangement: Respiration: Gram stain: (-) -oxidase (+) -doesn't survive outside habitat ``` -proteolytic

Diseases of Neisseria meningitidis - Cerebrospinal meningitis - meningococcemia - pharyngitis

(Cerebrospinal meningitis) (meningococcemia) (pharyngitis)

Mechanim of Disease for Neisseria meningitidis | -virulence factors

(Virulence) >polysaccharide capsule >fimbrae >IgA protease

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

``` (Method) -droplets (Habitat) -nasopharynx -oropharynx -genital tract (Audience) - (Resevoir) - ```

Prevention & Treatment Neisseria meningitidis | >Vaccine!!

``` (Prevention) -Vaccine -preventative therapy (Treatment) -Therapy ```

Ch 18 Flashcards

(35 cards)