The most recent yellow fever mass vaccination campaign in this area was conducted in 1987 and as a result the population is highly susceptible to the disease.
该地区最近一次黄热病大规模预防接种运动是在1987年进行的。因此,这里的人口极易受该病的影响。
In a given area, the worst will usually be over in four to six weeks as the virus rushes through a susceptible population, cases peak and infections decline with equal speed.
在既定区域,最坏的情况是,当病毒急匆匆地冲向易感人群后的四到六周内,病例数到达顶峰,接着匀速下降。
As population, China is the largest country, and as the territory area, just next to Russa Dan Canada, list the third in the world.
按照人口计算,中国是世界上最大的国家;按照领土面积计算,是第三大国家,仅次于俄罗斯和加拿大。
As population, China is the largest country, and as the territory area, just next to Russa Dan Canada, list the third in the world.
按照人口计算,中国是世界上最大的国家;按照领土面积计算,是第三大国家,仅次于俄罗斯和加拿大。
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