Renaud Piarroux1, Ralph R Frerichs2. 1. Department of Mycology and Parasitology, La Timone University Hospital and MD; Aix-Marseille University, 13385 Marseille Cedex 5, France. Electronic address: renaud.piarroux@ap-hm.fr. 2. Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA.