A 35-year-old woman returns from rural Thailand with a 4-day fever and headache. Malaria films are negative. She develops a maculopapular rash on day ...

Question

A 35-year-old woman returns from rural Thailand with a 4-day fever and headache. Malaria films are negative. She develops a maculopapular rash on day 5. NS1 antigen is negative. Dengue IgM is positive but so is chikungunya IgM. She has severe polyarthralgia. What is the most likely diagnosis based on clinical features?

Accepted Answer

Chikungunya - the dominant clinical feature of severe polyarthralgia strongly favours chikungunya over dengue

Answer

Dengue fever

Answer

Malaria

Answer

Zika virus infection

Answer

Leptospirosis

uk-dtmh MCQ (SBA): Clinical Differentiation Dengue vs Chikungunya