Gennady Onishchenko warned of the possible threat of European animal viruses epidemiologist and academician of the Russian Academy of Sciences emphasized that it is necessary to monitor both strains. "Of course, we need to do it now for the simple reason that in Europe they have already begun to differentiate that there is not only the Chamund virus, but that there are two more types of European strains among animals," Onishchenko said in an interview with TASS. He added that the infection was detected in Germany, France, Switzerland, Austria, Belgium and the Netherlands.