从已经有病毒传播的美国和一些欧洲国家的早期征象提示这种病毒并非异常危险，因为到目前只有很少病例死亡。
The early signs from the United States and a few European countries where the strain is spreading suggest it is not unusually dangerous, as there have been few deaths so far.
所以这是一个很早期的提示危险的征象。
So this is a very early sign that something risky is going on.
惊厥意味着你的孩子身体极不健康，它是一个 危险的征象。
Convulsions are a sign that your baby is far from well, they are a danger signal.
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