BUNIA, Congo — Five patients have recovered from a rare type of Ebola, the head of the World Health Organization said Sunday during a visit to eastern Congo’s Bunia, a city at the heart of an outbreak. “Four people will be discharged today and there was one that was discharged the day before yesterday,” WHO Director-General Tedros Adhanom Ghebreyesus said during the opening of a new Ebola treatment center in Bunia, the provinical capital of Ituri. “Of course, we’re still working on vaccines and