“The infection can be very dangerous if one isn’t vaccinated against it. The dangerous type is very rare and we last saw it in Denmark in 1998,” an a spokesman for the Danish State Serum Institute spokesman said.
Incoming refugees have also been found to carry tuberculosis and malaria.
“There is no doubt that infectious diseases are coming in with the refugees that we aren’t used to. There have been discussions on whether all refugees who come to Denmark should be screened," he said.
Plans are also afoot to vaccinate arriving asylum seekers as Denmark does not vaccinate arriving migrants despite recommendations from the World Health Organization to do so.
In France, Prime Minister Manuel Valls has warned that Europe's migration crisis is putting the EU at grave risk.
Mr. Valls told the BBC that Europe could not take all the refugees fleeing what he called terrible wars in Iraq or Syria.
"Otherwise," he warned, "our societies will be totally destabilized."
Meanwhile, health agencies confirmed that Syrian refugees have transported leishmaniasis to Lebanon and Turkey, where it has been difficult to manage and treat.
Moreover, patients can be infected with the parasitic disease without showing symptoms for weeks, months, or even years, which means the health screening process for refugees could miss the disease entirely.
More than a million migrants, mostly refugees, arrived in Europe last year alone.
The European Center for Disease Prevention and Control has previously warned of immigration's impact on "public health in Europe".