neisseria meningiditis Flashcards

1
Q

morfología n. meningiditis

A
  • Diplococo gramnegativo
  • Forma de grano de café
  • Encapsulado
  • No móvil
    -aerobio obligado
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2
Q

características n meningiditis

A
  • Oxidasa y catalasa positivas
  • Fermenta glucosa y maltosa
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3
Q

factores de virulencia

A

cápsula
pilis
OPA y OPC
catalasa
IgA proteasa
proteína de unión al factor H
LOS
coagulación intravascular diseminada

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4
Q

OPA y
opc

A

adhesión

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5
Q

LOS

A

induce inflamación severa

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6
Q

infecciones n meningiditis

A
  • Meningitis meningocócica
  • Meningococcemia (sepsis)
  • Púrpura fulminante
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7
Q

epidemiología n meningiditis

A
  • Gotas respiratorias
  • Brotes en comunidades cerradas
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8
Q

dx n meningiditis

A

cultivo de sangre y LCR en agar tahyer martin
prueba de fermentación de maltosa
vacuna conjugada y recombinada

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