The U.S. Marshals are hunting a man who they allege shot and killed his girlfriend during an argument before carjacking a witness and escaping, authorities said. ????? ???????  

Ngashi said there are two hypotheses: The first is that the undiagnosed disease is severe malaria "on a background of malnutrition and viral infection" and the second is the disease is a viral infection "on a background of malaria and malnutrition." ????????????  

Laboratory testing showed 25 out of 29 tested were positive for malaria. Additionally, rapid testing showed 55 out of 88 patients were positive for malaria. ?????  

Over the last week, 181 samples from 51 cases were tested in a laboratory, Dr. Ngashi Ngongo, Africa CDC chief of staff, said during a Thursday press briefing. ????? ???????  

As of Dec. 14, the latest date for which data is available, 592 cases have been reported as well as 37 confirmed deaths and 44 deaths under investigation, according to the Africa Centres for Disease Control and Prevention (Africa CDC), the public health agency of the African Union. ????????????