Kenya's Health Ministry said the woman was a "primary contact and a close relative of the first and second cases" and had been in quarantine since October 6. After developing fever, sore throat and malaise, she was isolated and tested positive for Ebola. "She was diagnosed early and is currently receiving supportive care improving her chances of recovery," the ministry said in a statement.
The first case emerged last week when a Kenyan man who had been ill in the DRC travelled by road to Uganda and then flew to Nairobi on October 3. A relative drove him to hospital, where he died on October 5.
Kenya's cases are directly linked to the Ebola epidemic in the DRC, which is the second-largest on record globally. The Bundibugyo strain circulating has no licensed vaccine, though research is underway with some candidates in early human trials.
The Health Ministry moved to reassure the public that there was no community spread and that the overall risk remained low. Of 130 contacts identified, 127 had been traced and were in quarantine, the ministry said.
The report also noted that Africa's top public health body and Congolese health authorities face demands for greater transparency over funds allocated to the Ebola response, as efforts to curb transmission continue to face challenges.