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Appl Environ Microbiol. 1982 May; 43(5): 1221-1224

Evidence that microorganisms cause inactivation of viruses in activated sludge.

ABSTRACT

Virus loss in activated sludge appeared to be caused by microorganisms. This conclusion is supported by the finding that poliovirus infectivity decreased during incubation in mixed-liquor suspended solids, primarily because of a sedimentable, heat-sensitive component. Furthermore, broth spiked with mixed-liquor suspended solids acquired antiviral activity during incubation.

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