KINSHASA, Congo (AP) — Congo's latest outbreak of the deadly Ebola virus is over, the health ministry announced Tuesday, after a 42-day observation period with no new confirmed cases recorded. There were 54 Ebola cases, including 33 deaths, in the outbreak that was declared in early May in northwest Equateur province, the ministry said.Health officials said a quick international response and vaccinations of more than 3,300 people were major factors in containing the outbreak, Congo's ninth since the hemorrhagic fever was first identified in 1976. "Although the scale of the crisis we were facing was unprecedented, the speed and effectiveness of the response put in place by the government and its partners were also exceptional," Health Minister Dr. Oly Ilunga Kalenga said.