1. From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.);...