[On the circulation of pathogenic microorganisms and viruses in the soil, water and air].
D000391:Air Microbiology; D001419:Bacteria; D012988:Soil Microbiology; D014780:Viruses; D014871:Water Microbiology
O tsirkuliatsii patogennykh mikroorganismov i virusov v pochve, vode i vozdukhe.