随着这些地区传播范围扩大，与急性呼吸道疾病严重征象有关的住院人数和死亡人数也相应增加。
The higher levels of transmission in these regions corresponds to an increased number of hospital admissions and fatalities associated with severe manifestations of acute respiratory illness.
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.
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.
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