Authors: Francisco Panzera; Jean Pierre Dujardin; Paula Nicolini; María Noel Caraccio; Virginia Rose; Tatiana Tellez; Hernán Bermúdez; María Dolores Bargues; Santiago Mas-Coma; José Enrique O'Connor; Ruben Pérez Journal: Emerg Infect Dis Date: 2004-03 Impact factor: 6.883