Definition: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Input: Question: A 54-year-old man diagnosed with diabetes mellitus type 2 came to our clinic. He reported fever of 40C with chills and shivering, arthromyalgia and headache, which is why he started treatment with paracetamol. The painting began 24 hours before his return to Spain. After 3 days, he presented with a generalized maculo-papular rash that progressed to the formation of more intense petechiae in the lower limbs. It provides analytics where leukopenia stands out with 3,200 / mm3 and platelets 91,000 / mm3 and mild elevation of aminotransferases. Thickness, peripheral blood smear, polymerase chain reaction (PCR) and malaria antigen are negative. What is the most likely suspected diagnosis?
Options: <1> Coronavirus infection. <2> Lymphocyte choriomeningitis. <3> Dengue. <4> Chikungunya virus infection. <5> Encephalitis of Saint Louis.
Output:
3