MS-2252

MS-2252

A 20-year-old man presents with a 4-day history of fever, headache, and myalgia. He recently returned from a trip to India where he did not take any prophylaxis or use protective clothing or repellent against insects.

During the clinical examination, a non-tender maculopapular rash with islands of sparing is observed on his trunk. His blood pressure is 120/105 mmHg, temperature is 38.7ºC, and heart rate is 80 beats per minute.

Thick and thin smear did not reveal any abnormalities, but his dengue NS1 antigen is positive while dengue IgM and IgG are both negative. Stool microscopy did not reveal any ova or parasites.

What could have been the vector for the causative organism?