Liew P F, Gerba C P
Appl Environ Microbiol. 1980 Aug;40(2):305-8. doi: 10.1128/aem.40.2.305-308.1980.
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.
评估了河口沉积物对1型脊髓灰质炎病毒和1型艾柯病毒热灭活的影响。在观察的时间段内，存在沉积物时，脊髓灰质炎病毒在24℃和37℃下存活时间延长，但在4℃下未延长。在50℃和55℃下进行了进一步的灭活研究以最大化热效应，观察到了类似的保护作用。海水和沉积物混合物的上清液缺乏对热灭活的保护作用，这表明在存在沉积物的情况下病毒存活时间延长是由于吸附到颗粒物上。从这些观察结果来看，肠道病毒吸附到河口沉积物上可能在保护它们免受热灭活方面发挥重要作用。
