A 37-year-old man traveling through South America has a sudden onset of fever, severe headache, and chills. A macropapular rash develops on his trunk, which then spreads to his face and extremities. The vector transmitting this disease is most likely:
a. ticks.
b. mosquitos.
c. lice.
d. sandflies.
B
Dengue virus is the most prevalent arbovirus in the world, with more than 100 million people infected annually. The virus is endemic in Latin America, Puerto Rico, and Mexico. The majority (>90%) of the cases reported in the United States are related to travel. Humans are the main reservoir for this virus, with person-to-person transmission occurring via a mosquito vector.
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