VIRUCIDAL AND VIRUSTATIC ACTION OF CETYL-DIMETHYL-BENZYL-AMMONIUM CHLORIDES AND CETYL-TRIMETHYL-AMMONIUM CHLORIDE AGAINST FOWL PLAGUE VIRUS AND NEWCASTLE DISEASE VIRUS
ACTIVIDAD VIRICIDA Y VIROSTATICA DEL CLORURO DE CETILDIMETILBENCILAMONIO Y DEL CLORURO DE CETILTRIMETILAMONIO FRENTE A LOS VIRUS DE LA PESTE AVIAR CLASICA Y DE LA PSEUDOPESTE AVIAR