Yersinia Flashcards

1
Q

Y.pestis

A

Patógeno muy virulento
Produce peste

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2
Q

Y.enterolitica y Y.pseudotuberculosis

A

Patógeno principalmente entérico

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3
Q

Factores de virulencia de Yersinia

A

Sistema de secreción tipo III (Gen YopH, YopE, YopJ/P)
Inhibe produccion de citocinas

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4
Q

Factores de virulencia especificos de Y.pestis

A

Gen de la fracción f1: cápsula
Gen de la proteasa de activador del plasminogeno (pla): degrada C3b y C5a, evita opsinizacion
Sideroforo independiente

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5
Q

Enfermedades de Y.pestis

A

Peste bubónica
Peste neumonica

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6
Q

Peste bubonica

A

Bubon doloroso en ingle o axila
Bacteriemia en ausencia de tratamiento

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7
Q

Peste neumonica

A

Fiebre y malestar general
Elevada infectividad
Transmisión entre personas por medio de partículas aerosolizadas

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8
Q

Enfermedades de Y.enterolitica

A

Enterocolitis
Diarrea, fiebre, dolor abdominal que puede durar 1-2 semanas
Forma crónica si persiste por meses

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9
Q

Pseudoapendicitis por Y.enterolitica

A

Cuando gastroenteritis afecta ileon terminal y se afectan ganglios linfaticos mesentericos

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10
Q

Enfermedades de Y.pseudotuberculosis

A

Enterica
Gastroenteritis: forma cronica y pseudoapendicitis

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11
Q

Otras enfermedades de yersinia

A

Septicemia
Artritis
Absceso intraabdominal
Hepatitis
Osteomielitis

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