unidad 7 bacillus Flashcards

1
Q

taxonomia

A

DOMINIO: Bacteria
FILO: Firmicutes
CLASE: Bacilli
ORDEN: Bacillales
FAMILIA: Bacillaceae
GENERO: Bacillus

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2
Q

caracteristicas

A
  • Gram positiva
  • Formadora de esporas (endosporas)
  • Típicamente saprofíticos en suelo y agua
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3
Q

especies de impoo medica

A
  • Bacillus cerus
  • Bacillus anthracis
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4
Q

endoespora

A

celula no reproductiva producida x bacterias

sobrevive a ambientes hostiles

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5
Q

antrax cutaneo

A

inoculacion en piel 95%
10 a 12 dias
papula indolora hasta llegar a ulcera

mortalidad 5-20%

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6
Q

antrax gastrointestinal

A

incubacion de 1 a 7 dias
carne cruda
ulceras en digestivo

mortalidad 100%

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7
Q

unico antrax 100% motal

A

antrax gastrointetsinal

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8
Q

ÁNTRAX POR INHALACIÓN

A

incubacion de 1 a 40 dias
inhalacion de + de 8,000 esporas
mortal

no persona persona

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9
Q

pXO1

A

PA-antigeno protector
EF-factor de edema
LF-factor letal

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10
Q

PA+EF

A

Toxina del edema

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11
Q

PA+LF

A

toxina letal

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12
Q

enzima de la toxina del edema

A

adenilato ciclasa

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13
Q

epidemiologia

A

1979- URSS 68 muertes
2001-EUA 11 inhalacion 11 cutaneo

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14
Q

TX bacillus anthracis

A

CIprofloxacino
doxiciclina
+ 2 antibioticos

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15
Q

Enterotoxina
termoestable

A

provoca la forma emetica de la enfermedad

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16
Q

Enterotoxina
termolabil

A
  • Provoca la forma diarreica de la enfermedad
17
Q

Caracateristicas ENTEROTOXINA
TERMOESTABLE en bacillus cerus

A

arrox
menos de 6hr-incubacion
vomitos, nauseas, calambres abdominales
duracion 8 a 10 hr

18
Q

Caracteristicas ENTEROTOXINA
TERMOLABIL en bacillus cerus

A

Carne y verduras
diarrea, nauseas, calambres abdominales
incubacion- de 6 hr
duracion 20 a 36hr

19
Q

Tx bacillus cerus

A

penicilina y cefalosporinas ineficaces