What is the most common arbovirus in returning travelers?

What is the most common arbovirus in returning travelers?

• A. Chikungunya
• B. Dengue Fever
• C. Zika Virus
• D. Yellow Fever

Answer: (B)

Dengue fever is the most commonly seen arboviral illness in travelers who return from tropical regions. This reflects the high background incidence of dengue across many travel destinations and the wide distribution of Aedes mosquitoes that transmit it. Clinically, dengue often presents as abrupt high fever with severe body pains, and may include a rash or headaches, which makes it a frequent diagnosis among returning travelers who become ill after their trip. Early testing can be targeted: NS1 antigen or RT-PCR in the first week, with IgM becoming detectable a few days later, and management is primarily supportive with attention to fluid status and avoidance of NSAIDs due to bleeding risk. Chikungunya and Zika do occur and can mimic dengue, but dengue has historically represented the larger share of imported arboviral cases. Yellow fever is less common in travelers today because of vaccination and the more restricted geographic distribution of outbreaks.

Dengue fever is the most commonly seen arboviral illness in travelers who return from tropical regions. This reflects the high background incidence of dengue across many travel destinations and the wide distribution of Aedes mosquitoes that transmit it. Clinically, dengue often presents as abrupt high fever with severe body pains, and may include a rash or headaches, which makes it a frequent diagnosis among returning travelers who become ill after their trip. Early testing can be targeted: NS1 antigen or RT-PCR in the first week, with IgM becoming detectable a few days later, and management is primarily supportive with attention to fluid status and avoidance of NSAIDs due to bleeding risk. Chikungunya and Zika do occur and can mimic dengue, but dengue has historically represented the larger share of imported arboviral cases. Yellow fever is less common in travelers today because of vaccination and the more restricted geographic distribution of outbreaks.