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Shigella Flashcards

1
Q

Shigella groups

A

A. S.dysenteriae - productor de toxina shigella
B. S.flexneri (países en desarollo)
C. S.boydii
D. S.sonnei (USA, Europa)

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2
Q

Disenteria bacilar (shigelosis)

A 
Una enfermedad principalmente pediátrica. Se produce brotes epidémicos en guarderías. 
Fiebre, calambres abdominales, diarrea acuosa.
Heces sanguinolentas (+ moco y células inflamatorias)
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3
Q

Disenteria bacilar Dx

A 
Heces
Siembra en medio general: 
Colonias en Agar McConkey
- Incoloras y transparentes
Siembra en medio selectivo:
Colonias en agar salmonella-shigella
- Transparentes, translúcidas y opacas y lisas
Colonias en agar Xilosa-Lisina-Desoxicolato (XLD)
- Transparentes y rojo
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4
Q

Disenteria bacilar complicaciones

A

S.flexneri: sd Reier en pacientes con HLA-B27

S.dysenteriae: SHU

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5
Q

Shigella tto

A

Adultos - Fluorquinolonas, azitromicina

Niños - cefalosporina 3a, azitromicina

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