Operating conditions for using oiled sodocalcic glass wool (Saint Gobain R. 725) to concentrate enteroviruses in 100 to 1000 liters samples were determined. These filters recovered from 62 to 75% of several enteroviruses (laboratory strains or field isolates) and rotavirus SA11 that were added to tap water. The technique permitted the recovery of 62% and 57% of poliovirus added respectively to river water and treated waste water. The results of a 44 months survey of the Seine and Mame river waters are reported. Being efficient at ambient pH, the use of glass wool may permit continuous virological monitoring of water samples.

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