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other 2 Flashcards

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Biology 101 flashcards
1
Q

HBV treatment

A
  1. IFN-α
  2. entecavir
  3. tenofovir
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2
Q

pneumonia by pseudomonas - treatment

A

gentamycin

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3
Q

How listeria survive in the cell

A

listeriolysin 0 (a preformed toxin) selectively activated within acidified phagosomes –> escape from phagosome

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4
Q

staphyloccoci according to mannitol fermentation

A

only S. aureus

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5
Q

Pertussis phases

A
  1. Catarrhal phase (like URI)
  2. Paroxysmal phase - severe coughing spells with clasic inspiratory whoop or post-tussive emesis
  3. Convalescent phase - cough improves
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6
Q

virus that causes Steven Johsnon

A

CMV

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7
Q

how to distinguish E. coli from Enterobacter

A

E.coli is indole (+)

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8
Q

pathognomonic histology for hepatic schistosomiasis

A

periportal “pipestem” fibrosis

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9
Q

Bacteria - how to survive intracellulary

A
  1. by blocking the fusion of phagosomes with lysosome (salmonela + TB)
  2. by inhibiting phagolysosome acidification (TB)
  3. Escaping from phagosome into the cytpsol (Listeria, Shigella)
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10
Q

B19 virus protein binds to

A

erythrocyte P antigen

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11
Q

Dracunculus medinensis - transmission / causes

A
  • Drink water with lavrae

- skin + soft tissue infection

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12
Q

B. henselae is visuable in

A

Warthin-starry stain

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13
Q

Chikungunya

A
  • a febrile illness with flulike, polyarthralgia/arthritis, rash
  • AEDES mosquito (like Yellow + Dengue)
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14
Q

katayaam fever - mechanism and manifestation

A

Schistosomiasis:

1. fever 2. hepatosplenomegaly 3. eosinophilia

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15
Q

mechanism of mycoplasma induced anemia

A

similarity between antigens in the cell membranes of Mycoplasma + the cell membrane of erythrocytes
(I-antigen)

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16
Q

initial of empiric therapy coag (-) staph infection

A

vancomicin (due to widespread methicillin resistance, esp in nosocomial infections)
- if methicillin sensitive –> switch to nafcillin or oxacillin

Microbiology (25 decks)

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