Machupo in 1956 in the Beni province of Bolivia, Junín in north Argentina, Guanarito in Portuguesa state in Venezuela in 1989, Sabia in Brazil in 1990 and more recently Chapare in 2004 in Bolivia.
virus Machupo se je pojavil leta 1956 v provinci Beni v Boliviji, Junín so opazili v severni Argentini, virus Guanarito so odkrili leta 1989 v pokrajini Portuguesa v Venezueli, virus Sabia se je pojavil leta 1990 v Braziliji, nazadnje pa so poročali o virusu Chapare leta 2004 v Boliviji.