肖海姆说，一些病毒在其宿主产生了抵抗力时，也许已经进化出许多另类病毒蛰伏于冰中。
Many other viruses may have evolved to lay dormant in ice when their host populations develop resistance, says Shoham.
他们现在正在努力证明，在湖冰中找到的病毒确实能很好地活下来，在冰融化之时再次感染鸟类。
They are now trying to prove the viruses found in lake ice can actually survive well enough to re-infect birds when the ice melts.
他怀疑水传播的病毒，比如小儿麻痹症、甲型肝炎和轮状病毒(一种致婴儿和新生畜胃肠炎的病毒)都可能生存于冰中。
He suspects waterborne viruses such as polio, hepatitis a, and rotavirus (which causes diarrhea) could all potentially survive in ice.
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