© UnknownPanoramic view of Rio de Janeiro, Brazil
Rio de Janeiro - Brazilian authorities were Wednesday working to identify a mystery illness that killed a 53-year-old South African man visiting Rio de Janeiro.
Rio's state health ministry said the man, whose name was not given, succumbed to a hemorrhagic disease on Tuesday after falling ill on November 25, two days after arriving in Brazil to attend conferences.
He was taken to hospital with fever, vomiting, blood in his urine and rashes.
Doctors suspected he had contracted an arenavirus, a highly contagious group of viruses that includes Lassa fever, an infection endemic to west Africa that typically spreads to humans from proximity to rodents or from infected people's secretions.
Dengue, malaria and ebola had all been ruled out, the ministry said.