Cocci Gram négatif et coccobacilles Gram négatif 1

Question 1

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

Answer 1

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

Question 1

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

Answer 1

Neisseria gonorrhoeae is always pathogenic
Neisseria meningitidis is often pathogenic

Thjey are both cocci gram negative bacteria

Question 2

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

Answer 2

• 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

Question 3

Neisseria gonorrhoeae transmission type

Answer 3

Transmission par contact direct : le plus souvent par contact sexuel

Question 4

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

Answer 4

False
They have beta lactamase which makes them resistant to penicillin

Question 5

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

Answer 5

• 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»

Question 6

Neisseria meningitidis What is the main virulence factor

Answer 6

Capsule

Question 7

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

Answer 7

Neisseria meningitidis

Question 8

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

Answer 8

Neisseria meningitidis

Question 9

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

Answer 9

Neisseria meningitidis

Question 10

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

Answer 10

Moraxella catarrhalis

Question 11

Is it a good idea to Treat Moraxella catarrhalis with penicillin

Answer 11

No they are betaalactamase generators and so they are penicillin resistant

Question 12

2 types of Coccobacilles

Answer 12

Haemophilus influenzae
and
Bordetella pertussis

Question 13

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

Answer 13

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

Question 14

Which type of hemophilia influenza is the most pathogenic and why

Answer 14

Serotip B
Because of capsule

Question 15

What bacteria could be causing this Méningite
Epiglottite
Arthitie septique

Answer 15

Haemophilus influenzae Serotype B

Question 16

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

Answer 16

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

Question 17

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

Answer 17

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

Question 18

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

Answer 18

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