The number of suspected Ebola patients in Guinea has more than doubled from last month, the health ministry said on Thursday, highlighting a "fourth phase" of the epidemic after a dip in cases in early 2015. According to Reuters, the worst outbreak in history, which has killed more than 10,000 people in West Africa, appears to be on the wane, especially in Liberia where there are no current cases. But there is still resistance to the anti-Ebola effort in Guinea, which is struggling to control the outbreak and has overtaken Sierra Leone as the main hub for transmission. Dr Rafiou Diallo, a spokesman for Guinea's health ministry, said there were 91 suspected and confirmed Ebola patients in treatment centres compared with just 39 in February. "There is without doubt a spike in the number of cases, especially in Forecariah and Coyah (western Guinea). The explanation is there is still resistance that has not been overcome," he said. The number of Ebola cases in Guinea peaked in late December when there were nearly double current number of patients at 171, according to the World Health Organisation. The current Ebola outbreak was first confirmed in Guinea's remote southeastern forest region last March.