In 1976, a late winter outbreak of swine flu at a military base in the USA led to fears of a devastating pandemic.
1976年冬季末，在美国一军事基地暴发的猪流感引起人们对一场毁灭性大流行病的恐惧。
In 1976, a late winter outbreak of swine flu at a military base in the USA led to fears of a devastating pandemic.
1976年冬季末，在美国一军事基地暴发的猪流感引起人们对一场毁灭性大流行病的恐惧。
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