Thus, one of the characteristics after-effects among the 
_ large cattle which had developed the foot and mouth disease 
during the epizootic caused by the virus type A«22, were 
_ ¢omplications that had set-in 3 to 6 months after the illness. 
_ These complications were observed during the months of August 
and September, 1966, mainly in southern regions of the Republic 
and were evidenced as cardiovascular diseases, In some herds, 
among the animals which had earlier developed the Footeande 
Mouth Disease, 5 to 10 and in some areas upto 25% of cows were 
observed to suffer from the cardiovascular complications. 
The clinical complications included; short-windedness, 
less of weight, decreased producttivity and delay in shedding 
| their hairs These complications continued during 3 to 4 years 
(period of observation), and the meat of such animals, as a 
rule, was declared as defective, 
The large cattle and pigs developed a more severe form 
of Pooteand-Mouth Disease; during this epizootic, a greater 
number of younger animals died than during the other two 
epizootics.e 
The other two epizootics (caused by the FPoot~and-Mouth 
Disease virus type A-7 and 0-2) commenced during the summer 
months (July « August) in the territory of the Ukrainian SSR. 
- The Footeand-Mouth Disease, caltised by the virus type 
Ao22, was first recorded in the month of October, 1965, within 
the northern and northeeast regions of the Ukrain. From the 
‘first days of the epizootic, the Footeand-Mouth Disease was 
widely distributed and during the months of October-December, 
1965, as many as 63 areas were attacked by the virus, which 
included 61% of the large cattle, 50% of pigs and 46% of sheep, 
which had developed the Foot+eand=-Mouth Disease as compared to 
the total number of animals during the 1965-1966 epizootic. 
% During the highest peak period the epizootic, almost all 
the large cattle in farms of areas attacked by this infection 
were affected by the Footeand-Mouth Disease. 
During the years that followed, the so called "Post~ 
epizootic period" (from 1968), the disease among the large 
Cattle was of a mild nature and attacked a small number of 
cattle. ‘his was the result of the fact that a substantial 
number of animals had already had the footeand-Mouth Disease 
(4). 
