Nigerian Minister of Health Onyebuchi Chukwu told reporters that the infected physician had been treating Patrick Sawyer , a top government official in the Liberian Ministry of Finance who died of Ebola in a Nigerian hospital July 20 . Diagnosis comes three weeks after Liberian-American man died from virus . The patient was infected in Liberia and flew to the United States for treatment at a hospital there. Experts will also help implement stronger systems to fight the disease , CDC chief says .
Diagnosis comes three weeks after Liberian-American man died from virus . The patient was infected in Liberia and flew to the United States for treatment at a hospital there. Experts will also help implement stronger systems to fight the disease , CDC chief says .