Foreign newsreels № 5925 (1979)

Bulgaria - River Isker.

Industrial plants on the banks of the river.

Stoke industrial waste into the river.

Rubbish in water.

Yugoslavia - Capture animals and animals infected with rabies virus.

Institute.

Pasteur in Novi Sad.

Production of rabies vaccines.

Vaccinations population.

Czechoslovakia - cattle farms and a laboratory for the development of new breeds of pedigree cattle in Gradiste.

Poland - Reserve "Bialowieza Forest" on the territory of Poland.

A herd of bison.

Scientists Branch of the Polish Academy of Sciences conduct research.