ABSTRACT


ADOLFO SCHOIJET, CESAR SESDEDOS E ISAIAS TAGLE1
 

For the preparation of the Violet Crystal Vaccine against Hog Cholera, it is necessary to use hogs that have not been infected and come from uncontaminated areas.
Control tests show than the vaccine gives the hogs enougs inmunity to resist large doses of live virus administered by injection.
The excellent results obtained by the vaccination of 70.000 hogs with the vaccine prepared in accordance with the Penhany D´Apice method by the Instituto de Investigaciones Veterinarias seems to confirm that this is the best method to use in unifected areas.

Keywords:
1 Médicos Veterinarios de las Secciones: Control de Productos Biológicos, Virus y parasitología, respectivamente, Instituto de Investigaciones Veterinarias.