Chikungunya

Background

Mosquito transmitted virus, originally found in West Africa but cases in the Americas beginning in 2013

Clinical Features

• Fever typically greater than 39deg
• Polyarthralgias, bilateral and symmetrical
• Rash- maculopapular
• Myalgias
• N/V
• Lymphocytopenia
• Elevated LFTs
• AKI
• 3-7d incubation period

Differential Diagnosis

1. Dengue Fever: very similar features but Chikagunya more prominent arthralgias
2. other infectious rashes

Workup

• CBC w diff, Cr, LFTs
• contact CDC for specialized testing; recommends tiger top tube

Management

Symptomatic treatment: acute symptoms usually resolve in 7-10d

See Also

• Travel Medicine

Sources

CDC