对于一种新型并且传染性很强的病毒而言，每个人都有被感染的可能。现在大流行流感疫苗的供应不足以满足世界人口的需求。
Current supplies of pandemic vaccine are inadequate for a world population in which virtually everyone is susceptible to infection by a new and readily contagious virus.
对于一种新型并且传染性很强的病毒而言，每个人都有被感染的可能。现在大流行流感疫苗的供应不足以满足世界人口的需求。
Current supplies of pandemic vaccine are inadequate for a world population in which virtually everyone is susceptible to infection by a new and readily contagious virus.
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