In Africa, identifying haemorrhagic fever such as Ebola and Lassa fever (1 million cases per year) is made difficult by the lack of specific symptoms at the onset of the disease. Symptoms such as fever and headache appear after 7 to 8 days of incubation. These are followed by abdominal pains, nausea, vomiting, diarrhoea, painful joints and conjunctivitis prior to haemorrhaging and often death between the sixth and sixteenth day of the disease.
Par la suite, des douleurs abdominales, nausées, vomissements, diarrhées, arthralgies et une conjonctivite précèdent des manifestations hémorragiques et un choc souvent mortel survenant entre le sixième et le seizième jour de la maladie.
