presence of brucellosic infection but also at places were, in 
our opinion, it is not present. 
Thus, in the collective farm named after Kirov, Kirovgrads- 
koi region, in the absence of clinical symptoms of brucellosis 
in the animals and by maintenance of healthy un-vaccinated ani- 
mals in the vaccinated herd, within five years after vaccination 
positively reacting animals out of the ones earlier inoculated 
continued to be isolated. Such examples were many. 
This served as a reason for carrying out a new order of 
immunization of animals against brucellosis in the republic 
with the vaccine of the strain. 
The calves were subjected to the primary prophylactic 
vaccination not Jater than five to eight months of age. The 
young cattle of older age and the adult animals were inoculated 
with the vaccine, if this animal was free of brucellosis and 
vaccination was done with the permission of the veterinary 
section of the Regional Agricultural Management. The young 
cattle, among which animals having brucellosis are isolated, are 
fed and are later slaughtered. 
In farms where vaccination of the young cattle is done, it 
is recommenced to raise the inoculated animals in separate 
sections. Where, earlier, the adult cattle was vaccinated the 
inoculated animals must be kept in separate sections. 
The animals were immunized with the vaccine UNIIEV in 
farms where there were cows suffering from brucellosis. Out of 
4? farms of the Kharkov region in which the animals were inocu- 
lated 32 became healthy. 
In ferms, collective farms and state farms and the popu- 
lated places where the infection did not attain wide spreading 
and for the recovery of the cattle, investigations are being 
carried out by PA and FCK with the removal of animals from the 
herd which give positive results for brucellosis, the complex 
investigations of animals are done after every two to three 
weeks until double negative results we obtained in the entire 
eroup. In addition, we do not allow the introduction of healthy 
animals from clean farms to such herds. 
