tests on bovines vaccinated 3 or 4 times against foot-and-mouth disease with vaccines based on viruses cultivated on bkh cells , in roller bottles , have allowed to define the nature of some of the principal allergens : on the one hand residuary horse serum used to saturate the filters employed in preparing the virus intended for the manufacture of vaccines and , on the other hand , the substances liberated by the cytopathogenic action of the virus on the bhk cells .
C0002092
allergens
C0439861
substances