BUNIA, Congo (AP) — Congo on Saturday began vaccinating healthcare staff against Ebola in Bunia, the epicenter of the fastest-growing outbreak of the disease in history as they are “particularly exposed and deeply involved in the response,” the provincial governor said. Health workers and other front-line workers in the Ebola response are being prioritized to receive the Ervebo vaccine that was effective in past Ebola outbreaks caused by a different, more common type of virus. Clinical a...