It is a man who lives in an area with horses in the neighboring department of San José, the departmental director of Health, Pablo Alvarez, noted.

The official said that the patient is not hospitalized and is under medical treatment after visiting a health center with symptoms of the disease.

The first study showed negative results, but a repeat test confirmed the infection, Alvarez said.

Sudden fever, severe headaches, vomiting, drowsiness, confusion, weakness or tremors are some of the symptoms to which one should pay attention and consult a doctor, according to the MSP.

Transmission is through infected mosquitoes.

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