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TT 77-53040

ON THE EPIZOOTOLOGY OF FMD IN THE UKRAINE CAUSED BY VIRUS A22.

VISNYK SILSKOHOSPODAR NAUK, in Ukrainian, Vol. 5, 1971,
pp. 102-105

(Article by Shcharbyna, O.K.).

/ ..... /

The foot and mouth disease, caused by A22, was first introduced
into the Ukraine from the bordering regions of the RSFSR, in the
Autumn of 1965. During a fairly short peried of time this epzoo-
tic spread to many regions of the Ukrainian SSR. In 1966, the
foot and mouth epizootic continued to spread throughout the Repub-
lic, causing fresh outbreaks; in 1967, the epizootic decreased
substantially, but by 1968 - 1969 there were still some epizootic
flare-ups of foot and mouth disease in the Ukrainian Republic.

The scientists of the Department of Epizootology and parasito-
logy of the Ukrainian Order of the Red Banner of Labor Agricultural
Accademy, carried out a detailed study of the foot and mouth epi-
zootic caused by A22 virus. Their investigations included collec-
tions of data for study by scientists. This data was obtained from
a survey of 187 farms during the epizootic and after the epizootic
was over ( farms being selected according to their representative
character). The data thus obtained was analysed and tested by the
Scientists. On the basis of these studies definite conclusions
have been reached.

This article outlines a series of basic problems of foot and
mouth epizootic, caused by A22 virus.

THE AGE-WISE SUSCEPTIBILITY OF VARIOUS KINDS OF ANIMALS.

At the commencement of the epizootic (1965-1966) foot and
mouth disease attacked mainly cattle, a few pigs and a very few
sheep also. By 1967-1968, the number of pigs that became victim
to foot and mouth disease had increased appreciably. At the same
time, it was observed that the epizootic flare-up among these
types of animals occurred mostly on farms where many cattle, had
in the past, contracted foot and mouth disease.

Analysis of the data obtained, established that the most
susceptible animals in farms to foot and mouth disease are first