Occurrence in water of viruses of public health significance.
D004326:Drinking; D005618:Fresh Water; D006801:Humans; D011634:Public Health; D012623:Seawater; D012722:Sewage; D014777:Virus Diseases / Q000635:transmission*; D014780:Viruses / Q000472:pathogenicity; D014871:Water Microbiology; D014881:Water Supply
D012722:Sewage