Authors: Saskia den Boon; Schalk W P van Lill; Martien W Borgdorff; Donald A Enarson; Suzanne Verver; Eric D Bateman; Elvis Irusen; Carl J Lombard; Neil W White; Christine de Villiers; Nulda Beyers Journal: Emerg Infect Dis Date: 2007-08 Impact factor: 6.883