[Complement fixation test act in the diagnosis of mucosal disease-virus diarrhea in cattle].

: Experiments were made to obtain a highly active antigen for the complement-fixation test, using purification and concentration with methyl alcohol in a cell culture suspension of the causative agent of mucous disease-virus diarrhea. It was established that the CF test was sufficiently rapid and specific in the diagnosis of the disease in cattle. It proved instrumental in detecting complement-fixing antibodies in diseased and survived cattle, in calves with a latent infection and in cows with abortions.