methods that are used to stop a biohazard (= something such as a disease or chemical that may harm people, animals, or the environment) from spreading out of a place or from causing harm

We must put public health, biosafety, and food security before corporate interests. 我们必须把公众健康、生物安全和食品安全置于企业利益之上。

The plan was to return any life-forms found on Mars to Earth for extensive testing in a biosafety laboratory. 该计划是将在火星上发现的任何生命体送回地球，在生物安全实验室里进行广泛测试。