The health ministry said the woman had recently returned from Colombia, where it is believed she was infected.
Zika, which is spreading through the Americas, has been linked to babies being born with underdeveloped brains.
The World Health Organization (WHO) has declared the microcephaly condition, linked to the mosquito-borne virus, a global public health emergency.
The WHO on Thursday also advised countries not to accept blood donations from people who had travelled to Zika-affected regions, the AFP news agency reported.
The link between Zika infection and microcephaly has not been confirmed and the risks at different stages of pregnancy are unknown." Read more on bbc.