A Dane has tested positive for the mosquito-transmitted Zika virus, the national broadcaster DR reports.
Health authorities from Denmark's second largest city, Aarhus, said the patient travelled to South and Central America where the Zika virus has taken hold, DR said.
In the past five months in Brazil, 4000 babies have been born with abnormally small heads, a condition known as microcephaly, and linked to the mosquito-borne Zika virus.
DR quoted Professor Lars Ostergaard from Aarhus University Hospital as saying the case involved a young man.
Prof Ostergaard said the patient was allowed to go home after doctors made sure that he was feeling well.
The Centre for Disease Control has listed 23 countries where Zika is a risk -- mostly in Central and South America.
The latest advice is if you're pregnant or trying to get pregnant it's probably best to avoid travelling to countries where there's active transmission of the Zika virus.
Reuters / 3 News