Vibrio cholerae Flashcards

1
Q

What id the serotype of Cholera disease ?

A

O1& O139

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2
Q

What is the virulence factors of Cholera ?

A

Cholera toxin

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3
Q

Cholera toxin (A-B toxin): produced by ?

A

Lysogenic strains

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4
Q

What is the incubation period of Cholera ?

A

few hours to 5 days

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5
Q

Why is cholera can not couse fever ?

A

Because it is not invasive infection

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6
Q

Complication is rate especially in ?

A

children & pregnant woman

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7
Q

Light microscope of cholera show’s?

A

G - curved bacilli

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8
Q

What is the dark field microscope of cholera ?

A

darting motility , appearing like “ shooting stars”

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9
Q

What id the agar that use for cholera ?

A

TCBS agar → sucrose fermenter (yellow colonies)

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10
Q

What is the Treatment of cholera ?

A

Oral and IV rehydration

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11
Q

What is the vaccine of cholera diseases ?

A

1- Oral, live attenuated vaccine, contains serogroup O1 & O139. for travelers to endemic areas
2- oral, killed bacteria vaccines, with cholerae toxin B subunit.

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12
Q

Oral live attenuated vaccine of cholera is for ?

A

Travelers

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13
Q

Oral killed vaccines of cholera is used in ?

A

Countries where cholera epidemic occur

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14
Q

What is the shape of Vibrio Genus ?

A

comma-shaped curved bacilli

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