This may reflect the situation in many countries where the earliest cases often occurred as school outbreaks but later cases were occurring in the community.

许多国家的情况可能都是如此，其最初的病例通常在学校中暴发，而后来的病例则发生在社区中。

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Serious outbreaks of foodborne disease have been documented on every continent in the past decade, and in many countries rates of illnesses are increasing significantly.

过去十年间，各大洲均有食源性疾病严重暴发的档案记载，许多国家的疾病发生率还呈大幅度上升趋势。

youdao

Serious outbreaks of foodborne disease have been documented on every continent in the past decade, and in many countries rates of illnesses are increasing significantly.

过去十年间，各大洲均有食源性疾病严重暴发的档案记载，许多国家的疾病发生率还呈大幅度上升趋势。

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