尤指全国性流行的疾病的英文：
pandemic
adj. 全国流行的；普遍的
- The risk of a swine flu pandemic?
有猪流感疫情风险？ - But there is no need to assume that it is the next pandemic.
但如果把它假设成下一场流行病就没有必要了。 - Both flu pandemics and global warming are lethal.
全球变暖和流感瘟疫一样是致命的。 - Is there anyone who should not have the inactivated pandemic vaccine?
是否有任何人不应当接种大流行性流感灭活疫苗？ - We have lived under the looming threat of an influenza pandemic for four years.
四年来，我们一直处于一场流感大流行的隐约威胁之下。
