1 Programa Medicina del Viajero, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile. Electronic address: tweitzel@alemana.cl.
2 Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile. Electronic address: gerardo.acosta@uach.cl.
3 Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile. Electronic address: cmartinezv@med.puc.cl.
4 Naval Medical Research Center, Silver Spring, MD, USA. Electronic address: allen.richards@comcast.ne.
5 Center of Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Division of Internal Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands. Electronic address: m.p.grobusch@amc.uva.nl.
6 Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile. Electronic address: katia@med.puc.cl.