But three years later, a survey by the Center for Disease Control showed that 68 % of 15-year-olds had antibodies to enterovirus-71, indicating that many people had caught the virus but never even realized it. With such precedents, will SARS turn out the same way?
然而三年後，當疾病管制局進行大規模篩檢後，發現在十五歲年齡層的孩子中，竟有百分之六十八的人已有腸病毒七十一型抗體，表示許多人在不知情的情況下，已安度危機。