Yellow Fever

Etiology

  • Mosquito born flavavirus

Risk Factors

  • No vaccination
  • Travel to endemic areas of tropical/sub-tropical South America, Sub-Saharan Africa
  • Non-use of mosquito protection

Symptoms

  • Incubation 3-6d
  • Fever
  • Confusion
  • N
  • V
  • Muscle aches
  • HA
  • Lbp
  • 80% of those infected have sx
  • Spectrum of illness w/15% severe
  • Jaundice/icterus w/hepatic involvement
  • Spontaneous bleeding from coagulopathy
  • Decreased urine output from AKI
  • Multi-system organ failure

Physical Exam Findings

  • F
  • Jaundice
  • Icterus
  • Echymoses
  • Can appear toxic

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