Key result
Estuarine sediment prolonged the survival of poliovirus type 1 and echovirus type 1 at 24, 37, 50, and 55 degrees C compared to supernatant fluid, likely due to adsorption to particulates.
Why the study?
Does estuarine sediment protect enteroviruses against thermoinactivation?
Does estuarine sediment protect enteroviruses against thermoinactivation?
Estuarine sediments protect enteroviruses against thermoinactivation through adsorption to particulates.
Answers are grounded in this paper and cite their sources.
Estuarine sediment may shield enteroviruses from heat; leaves open relevance to environmental persistence and water treatment protocols.
The effect of estuarine sediment on the thermoinactivation of poliovirus type 1 and echovirus type 1 was evaluated. Poliovirus survival was prolonged at 24 and 37 degrees C but not at 4 degrees C in the presence of sediment over the time periods observed. Further inactivation studies were performed at 50 and 55 degrees C to maximize the thermal effects, and similar protection was observed. The supernatant fluid from a mixture of seawater and sediment lacked the protective effect against thermoinactivation, suggesting that prolonged virus survival in the presence of sediment was due to adsorption to particulates. From these observations, it appears that the adsorption of enteroviruses to estuarine sediments may play a significant role in protecting them against thermoinactivation.
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Liew et al. (1980) studied Enterovirus survival. Estuarine sediment vs. Supernatant fluid was evaluated on Thermoinactivation. Estuarine sediment prolonged the survival of poliovirus type 1 and echovirus type 1 at 24, 37, 50, and 55 degrees C compared to supernatant fluid, likely due to adsorption to particulates.
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