Generally Hendra virus outbreaks in horses occur one to two weeks before illness in humans; detected outbreaks in horses could trigger prevention measures to deter associated outbreaks in humans.
通常亨德拉病毒在马群中的暴发比人间疫情早一到两周。如在马群中发现疫情可促使采取预防措施，以阻止人类出现相关疫情。
For each weakness, the authors list several prevention measures like this one.
针对每个弱点，作者都列举了多种防止措施，如下所示。
While it's easy to point to one or two key measures for the prevention of the SQL injection attack, it's best to take a layered approach to the problem.
尽管采取一两项关键措施预防SQL Injection攻击是很容易的，但最好是对问题采用分层方法。
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