A new arenavirus, called Sabia, was isolated in Brazil from a fatal ca
se of haemorrhagic fever initially thought to be yellow fever. Antigen
ic and molecular characterisation indicated that Sabia virus is a new
member of the Tacaribe complex. A laboratory technician working with t
he agent was also infected and developed a prolonged, non-fatal influe
nza-like illness. Sabia virus is yet another arenavirus causing human
disease in South America.