(ANSA) - ROME, DEC 18 - The Treviso health authority has reported that a 55-year-old man who lives in the province and recently returned from a trip to the Democratic Republic of Congo, which has been hit by a mysterious fatal disease, has died with fever and hemorrhaging.
    The Veneto Region government said it has begun investigations to understand the origin of the illness in collaboration with Rome's Spallanzani hospital, which specializes in infections diseases.
    The only person the dead man is known to have had contact with since returning from the trip has been ordered to go into isolation at home.
    Congo's Ministry of Health has said the mystery disease is a severe form of malaria, but the World Health Organization has said the cause has not yet been established and laboratory tests are ongoing. (ANSA).