卫生专家说，它的迅速传播正值南半球冬季传统的流感季节。
Health experts say its rapid transmission coincides with the southern hemisphere's traditional winter flu season.
在南半球冬季期间，若干国家认为重症监护的需求是对卫生服务的最大负担。
During the winter season in the southern hemisphere, several countries have viewed the need for intensive care as the greatest burden on health services.
但南半球冬季的经验显示，此病毒可能会对卫生机构造成相当大压力，并可能导致重病和死亡。
But experience from the southern hemisphere during their winter season shows that the virus can place a considerable strain on health services and can result in serious illness and death.
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