Yellow fever: Difference between revisions

Line 7: Line 7:
3-4 days of:
3-4 days of:
*Fever
*Fever
**Faget’s sign-low pulse compare to high fever
**[[Faget sign]] (low pulse compared to high fever)
*[[Myalgias]]
*Myalgias
*[[Knee pain]]
*Knee pain
*[[Nausea]]
*[[Nausea]]
*[[Vomiting]]
*[[Vomiting]]

Revision as of 04:34, 20 November 2017

Background

  • A Flavi virus transmitted by Aedes and Haemagogus mosquitos
  • 200,000 cases per year with 30,000 deaths mostly in Africa
  • Endemic in tropical areas of sub-Sahara Africa and South America

Clinical Features

Stage 1: Infection

3-4 days of:

Stage 2: Remission

Either recovers or progresses to next stage in 48 hours

Stage 3: Intoxication

15% of patients Return of symptoms plus:

[Myocardial injury

  • CNS dysfunction
  • Bleeding complications

Differential Diagnosis

Fever in traveler

Evaluation

  • CBC
  • Chem
  • LFTs
  • Coags
  • Viral PCR
  • ELISA for IgM

Management

  • Symptomatic
  • Vaccination in endemic areas

Disposition

  • Admit

References