Picornavirus Flashcards

0
Q

repli de picorn

A

vp1 se una con icam-1, el genoma se una a ribo, se sintetiza poliproteina, polimerasa crea nuevo rnam

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1
Q

estruc de picor

A
pequeno tamana (pico) con arn
monocatenario
sin envoltura
capside icosaedrica
se multiplica en citoplasma
son citoliticos
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2
Q

patogenia de enterovirus

A

via de entrada las vias respiratorias, replicacion en tejido linfoide y mucosa, por viremia se disemina a higado, bazo y cerebro, se elimina por heces

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3
Q

epi de enterovirus

A

fecal oral, agua o comida contaminda, fomites, solo en humanos
resistenstes a desecacion
ninos y adultos

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4
Q

enf de enterovirus depende de

A
serotipo
dosis
tropismi tisular
sexo, edad
via de entrada
embarazo
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5
Q

infecciones por poliovirus

A
enf. asintomatica
poliomielitis abortiva
meningitis septica o polio no paralitica
polio paralitica- llega a asta anterior de medula
polio bulbar- centro respiratorio. 
sx pospoliomielitico
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6
Q

la polio mas grave

A

polio bulbar o paralisis bulbar

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7
Q

infecc por coxsackie

A

herpangina por coxsackie A
miocarditis y pleuropidinia por coxsackie B
enfermedad de manos pies y boca por coxsackie A16

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8
Q

infecc por echovirus

A

meningitis aseptica por echovirus 11

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9
Q

infecciones en comun entre coxsackie y echovirus

A

fiebre, erupcion, resfriado comun

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10
Q

enfermeda de rinovirus

A

resfriado comun, solo afecta vias respiratorias, rinorrea

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11
Q

patogenia de rinovirus

A

sensibles al ph acido, incapaz de multiplicarse en tubo digestivo, crecen en mucosa nasal

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12
Q

q segregan las cel infectadas por el rinovirus

A

bradiquinina e histamina

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13
Q

epi de rinovirus

A

contacto directo y fomites o aerosoles

cualuier edad

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14
Q

tx de picornavirus

A

precoranil
vacuna de polio inactivada
vacuna de polio oral

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