Emergency services in Berlin cordoned off a job centre and took a woman with Ebola-like symptoms to hospital, German media reported.
There was no immediate official information on the woman's identity or condition nor on whether she had travelled from the epidemic area in West Africa.
Reuters reporters on the scene said other people at the job centre had been allowed to leave.
UK trials of a vaccine for the Ebola virus began today - but some experts complain that the response has been a long time coming.
A Swansea doctor who took leave to treat Ebola patients in Africa, is back on the wards after three weeks in isolation.
The first British case of Ebola in the outbreak in West Africa has been confirmed. So how would repatriation work are what are the risks?