The incidence of the Foot-and-Mouth Disease during the 
post-vaccine immunity of calves is explained by the immature 
organism and stresses; in case of the older animals, this 
phenomenon may have been as a result of insufficiently fattened 
animals during the period of vaccination of the result of a 
physiological burden (pregnancy) and other factors. ‘The break 
in the immunity was also observed as a result of poor immunogenic 
properties of the vaccine. Among the nonespecific after effects 
ef vaccination, the alergic reactions (anaphylaxis) are worthy 
of attention, namely, miscarriage and activation of the sube 
clinical types of chronic infections. 
Despite all the after-effects, the annual vaccination of 
ahimals in Ukrain SSR is very popular and plays an important 
part in prophylaxis against the Footeand-Mouth disease. 
. In Ukrain, the antiefoot-~and-mouth measures are carried 
out in the following directions: 
Ie TO PREVENT THE IN COMING OF THE FOOT 
_ AND-MOUTH VIRUS FROM OTHER COUNTRIES 
INTO THE TERRITORY OF UKRAIN. 
/ 
For this purpose, the veterinaryesanitary measures are 
employed to control the export-import operations and enter-~ 
prises which prrcess products and raw material of farm animal 
ePrigin that is imperted into the Republic. 
| Measures are taken on the borders of the Republic in 
erder to prevent the entry of infection by wild animals 
especially during their migration, the animals in the boundry 
regions of settlements are also systematically checked. 
II. TO PRESERVE THE ZONUS FREE OF THE FoOT- 
AND-MOUTH DISEASE. 
For this purpose, general veterinary-sanitary measures 
are introduced in the farms (all wall boundry around the farms, 
sanitary checks, desinfecting barriers, desinfecting chambers, 
provision of uniforms, etc.). 
The procurement storage of meat, products and raw material 
is checked in the farms and in shops. 
(9) 
