Diagnosis

Diagnosing dengue fever can be difficult because its signs and symptoms can be easily confused with those of other diseases — such as chikungunya, Zika virus, malaria and typhoid fever.

Your doctor will likely ask about your medical and travel history. Be sure to describe international trips in detail, including the countries you visited and the dates, as well as any contact you may have had with mosquitoes.

Your doctor may also draw a sample of blood to be tested in a lab for evidence of infection with one of the dengue viruses.