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The Chikungunya virus: An emerging US pathogen

Thomas M Nappe1, Craig M Chuhran2, Steven A Johnson1

  • 1Department of Emergency Medicine, Lehigh Valley Hospital, USF Morsani College of Medicine, PA 18103, USA.

World Journal of Emergency Medicine
|March 24, 2016
PubMed

Insights

Chikungunya virus (CHIK) has been detected in the United States. This case documents an early CHIK infection in Pennsylvania following travel to Haiti, highlighting the need for clinical awareness.

Area of Science:

  • Virology
  • Infectious Diseases
  • Public Health

Background:

  • The Chikungunya virus (CHIK) has recently been reported by the CDC to have spread to the United States.
  • This report details an early documented case of CHIK in Pennsylvania in 2014.

Observation:

  • A 39-year-old male traveler returning from Haiti presented with fever, fatigue, polyarthralgias, and a rash.
  • Four accompanying friends also reported similar symptoms.
  • Diagnostic testing confirmed a positive CHIK antibody titer.

Findings:

  • The patient's condition improved within two days with supportive care, including anti-inflammatories, IV hydration, and anti-emetics.
  • The patient was discharged home in stable condition.

Implications:

  • Chikungunya virus (CHIK) manifestations can mimic Dengue fever, a co-infection transmitted by the same mosquito species.
  • Clinicians should consider CHIK in the differential diagnosis for patients with fever, polyarthralgia, and rash, especially with a travel history to endemic areas, including within the U.S.
Abstract

Keywords:
ArbovirusChikungunya virusMosquito-borne diseasePolyarthralgia

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