Lyme Disease Flashcards

1
Q

____ of polyarthritis in children

A

epidemic

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2
Q

what is the bacteria responsible for Lyme Disease?

A

Borrelia burgdorferi

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3
Q

Borrelia burgdorferi

  • gram?
  • shape?
  • __ borne disease
A
  • gram NEGATIVE
  • spirochete
  • vector-borne
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4
Q

Life Cycle of Tick

- requires __ between stages

A
  • larva -> nymph -> adult
  • requires blood
  • must acquire B.burgdorferi
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5
Q

Transmission of Tick

  • secretes ___
  • transmission time
  • which stage of life cycle?
A
  • local anesthetic
  • more than 24 hours
  • nymph
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6
Q

B.burgdorferi - Reservoir

  • transmitted to host through ___
  • which animal?
A
  • TICKS

- white footed mice

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7
Q

hematogenous dissemenination

A

spread in blood

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8
Q

B.burgdorferi - Transmission

  • __ saliva inhibits __ function
  • decreases (4)
A
  • tick, DC
  • phagocytosis
  • maturation
  • inflammatory mediators
  • antigen presentation
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9
Q

B.burgdorferi - Characteristics

  • periplasmic ___ called ___ filaments
  • Unusual ___ and ___
A
  • flagella, axial

- membrane and genetic structure

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10
Q

B.burgdorferi - flagella

  • __ around cells
  • move in ___ fashion
A
  • wrap

- cork-screw

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11
Q

B.burgdorferi - Unusual Membrane

  • NO ___
  • many surface expressed lipoproteins called ___
  • ___ to slow down escape
A
  • LPS
  • adhesions
  • adhesions
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12
Q

B.burgdorferi - Unusual Genetic Structure

  • ___ chromosome
  • ___ plasmids
  • ___ metabolic capacity
A
  • linear
  • multiple
  • limited
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13
Q

Infection 3 Stages

A
  • Early (localized) stage
  • Early (disseminated) stage
  • Late (disseminated) stage
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14
Q

Early Localized Stage

  • erythema migrans?
  • affects?
A
  • painless Bulls eye rash

- groin, axilla, waist, back

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15
Q

Early Disseminated Stage

  • type of patients?
  • multiple __
  • symptoms?
A
  • untreated
  • rashes
  • pain + swelling of joints, heart palpitations, meningitis
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16
Q

Late Disseminated Stage

  • can cause?
  • symptoms?
A
  • Long Term disability

- muscle pain, arthritis

17
Q

Blood Brain Barrier

  • type?
  • using what mechanism?
A
  • Paracellular

- flagella

18
Q

10-20% experience symptoms AFTER treatment

A

Post-Treatment Lyme Disease

19
Q

Diagnosis

A
  • erythema migrans
  • tick bite
  • anti-B.burgdorferi antibody test (false -)
20
Q

Treatment

- antibiotics how long

A

2-4 weeks

21
Q

Chronic Lyme Disease

  • diagnosed __ evidence of prior Lyme Disease
  • __ symptoms
A

CONTROVERSIAL

  • without
  • persistant
22
Q

Lyme Disease Vaccine

  • name?
  • how effective?
  • ___ high risk areas
  • claims of?
  • pulled due to?
A
  • LYMErix
  • 75%
  • considered
  • cause arthritis
  • lack of demand