Abstract
Several investigators have reported on the detection of enteric viruses in marine sediments, but none determined the efficiency of their methods and only limited volumes of sediment were sampled. The purpose of this investigation was to develop a quantitative method for detecting enteroviruses in marine sediments so that their relative proportion to viruses freely suspended in estuarine water could be more accurately determined. Poliovirus was found to adsorb readily to natural marine sediments collected along the Texas Gulf coast. A number of substances were evaluated for their ability to elute adsorbed viruses. A solution of 10% fetal calf serum adjusted to pH 10.5 and 0.05M ethylenediaminetetraacetate (pH 11.0) were found to be the best eluents. Using ethylenediaminetetraacetate as an eluent, it was possible to elute virus from large volumes of sediment and reconcentrate the sediment eluate into an economically assayable volume (30 to 50 ml). Poliovirus could be recovered from the sediment with an overall efficiency of 50%. This method was found to be satisfactory for the recovery of naturally occurring animal viruses in estuarine sediments from the upper Texas Gulf coast.
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Selected References
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