i Such quarantine measures for all the three points results 
in definite economical losses and a long period of such 
- quarantine has unsatisfactory results on the sanitary system, 
7 ‘bringing about violation of rules. 
a A oeadently a scientifically based system must be developed 
for the threatened zones, which would secure these zones from 
the entry of the footeand-mouth disease and, at the same time, 
decrease the period of such measures for these farms. 
(12) 
