The exact place of the patient’s residence, who has since been discharged, was not disclosed.
The virus is uniquely transmitted by mosquitoes, and in about one fifth of cases high fevers can be caused, while 1 in 150 cases are extremely serious.
The case in question is said to have involved a 70-year-old man.
The virus has now spread globally and in 2012, is reported to have killed 286 people in the United States.
The virus, found in tropical areas, is also a concern for animal owners, with horses a preferred target of the mosquito.
Authorities here are recommending the use of repellents and mosquito nets and said they would announce any new developments if and when they emerge.
Health officials explained that infection is unlikely, as the virus is only transmitted after a series of bites.