ID: Mycoplasma and Mycobaterial infections Flashcards Preview

Unit 6: Pathology > ID: Mycoplasma and Mycobaterial infections > Flashcards

Flashcards in ID: Mycoplasma and Mycobaterial infections Deck (14)
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1
Q

what agent causes atypical pneumonia

A

M. pneumonia

2
Q

what does it mean that mycobacteria is acid fast (in regards to staining)

A

it retains the carbofushsin stain after rinsing with alc

3
Q

primary infection with TB is what type of hypersensitivity reaction

A

type IV

4
Q

what makes up a ghon complex

A

a ghon focus in combo with infected mediastinal or hilar lymph nodes

5
Q

anergic patients with little or no resistance will develop what type of leprosy

A

laepromatous leprosy

6
Q

hypergic patients with a high resistance will develop which type of leprosy

A

tuberculoid leprosy

7
Q

what does M. avium and M. intracellulare cause in immunocompetetant people

A

rare slowly progressive granulomatous pulmonary disease (looks like TB but progresses even more slowly)

8
Q

what does M. avium and M. intracellulare cause in immunosuppressed people (AIDs)

A

progressive systemic disease

9
Q

what disease does M. scrofulaceum cause

A

cervical lymphadenitis in children

10
Q

what disaese does M. marinum cause?

A

hand infection in aquarium handlers

11
Q

what does mycobacteria cord factor do

A

inhibits macrophage maturation and induce release of TNF-a

12
Q

what does mycobacteria sulfatides (suface glycolipids)do?

A

inhibit phagolysosomal fusion

13
Q

what type of immunity is raised against lepromatous leprosy

A

low cell mediated immunity and a humoral TH2 reponse

14
Q

what type of immunity is raised against tuberculoid leprosy

A

high cell mediated immunity with TH1 immune response