1 Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar, Verona, Italy (R.H.).
2 Malaria Branch and Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia (E.W.).
3 Division of Global Migration and Quarantine, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia (K.M.A.).
4 J.D. MacLean Centre for Tropical Diseases, McGill University Health Centre, Montreal, Quebec, Canada (M.L.).
5 Department of Global Health, Boston University School of Public Health; Section of Infectious Diseases, Department of Medicine, Boston University Chobanian & Avedisian School of Medicine; Center for Emerging Infectious Disease Policy and Research, Boston University; and National Emerging Infectious Disease Laboratory, Boston, Massachusetts (D.H.H.).