Cocci Gram négatif et coccobacilles Gram négatif 1 Flashcards

1
Q

True or false
Gram negative cocci bacteria have flagelles on their surface

A

False
It is Pilli
They are immobile and do not have flagell

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1
Q

What is a Neisseria type that isoften pathogenic but not always always pathogenic and one that is

A

Neisseria gonorrhoeae is always pathogenic
Neisseria meningitidis is often pathogenic

Thjey are both cocci gram negative bacteria

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2
Q

xpliquer la différence entre un porteur sain (ex. : Neisseria meningitidis dans la gorge) et une infection asymptomatique par un pathogène obligatoire (ex. : Neisseria gonorrhoeae)

A
  • Someone that carries Neisseria meningitis is not problematic and shouldn’t be treated
  • However someone that has Neisseria gonorrhea even if there are no symptoms they must be treated
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3
Q

Neisseria gonorrhoeae transmission type

A

Transmission par contact direct : le plus souvent par contact sexuel

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4
Q

True or false
A good treatment for neisseria gonorrhea would be penicillin

A

False
They have beta lactamase which makes them resistant to penicillin

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5
Q

Name type of transmission reservoir as well as people in risk for Neisseria meningitis

A
  • Transmission : contact direct (baiser), gouttelettes
  • Réservoir : humains
  • Personnes à risque :
    Enfants < 18 mois
    Asplénie anatomique ou fonctionnelle
    Déficit en complément
    Voyageurs dans la «ceinture africaine»
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6
Q

Neisseria meningitidis What is the main virulence factor

A

Capsule

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7
Q

You have a patient presenting with a bacteria infection and he has a hard time moving and bending his head what could this be

A

Neisseria meningitidis

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8
Q

Which bacteria causes this?
▪Méningite
▪ Méningococcémie (fièvre, lésions cutanées)
▪Pneumonie

A

Neisseria meningitidis

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9
Q

What bacteria needs this diagnosis?
* Ponction lombaire pour prélèvement de liquide céphalo-rachidien
* Hemoculture
* Radiographie pulmonaire

A

Neisseria meningitidis

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10
Q

What bacteria?

Otite (otalgie avec ou sans fièvre)
▪ Sinusite (congestion nasale, sécrétions nasales, douleur, avec ou sans fièvre)
▪ Bronchite (toux, expectorations, avec ou sans fièvre)
▪ Pneumonie

A

Moraxella catarrhalis

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11
Q

Is it a good idea to Treat Moraxella catarrhalis with penicillin

A

No they are betaalactamase generators and so they are penicillin resistant

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12
Q

2 types of Coccobacilles

A

Haemophilus influenzae
and
Bordetella pertussis

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13
Q

True or false
Hemophilus influenza of serotype B is common in Quebec

A

False
It is super rare because everyone morning Quebec is vaccinated and so the only time you would see it is in immigrants or people coming in

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14
Q

Which type of hemophilia influenza is the most pathogenic and why

A

Serotip B
Because of capsule

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15
Q

What bacteria could be causing this Méningite
Epiglottite
Arthitie septique

A

Haemophilus influenzae Serotype B

16
Q

What is something to keep in mind for a young patient with épiglottite

A

Ne jamais faire de culture de gorge
à un enfant soupçonné d’avoir une épiglottite

17
Q

In terms of Bordetella pertussis, what should be considered before birth?

A

La vaccination de la femme enceinte prévient 90% des hospitalisations et 95% des décès reliés à la coqueluche chez les
enfants < 3 mois. Il faut administrer le vaccin à chaque grossesse

18
Q

True or False
azithromycine is a great antibiotic against Bordetella pertussis for symptopms control

A

False
It does not help the child that has the infection but only protect the people around!!!!
Again, IT DOES NOT HELP THE BABY ONLY THE PEOPLE AROUND