Neither the lab worker nor her family members sought medical attention, and all recovered within 4 weeks, after which it was too late for researchers to swab for traces of the adenoviruses directly.
无论是实验室工作人员还是她的家人都没有求医，全部在4周内康复，这时，由于太迟了，以致研究人员不能用棉拭采样直接地检查腺病毒的存在了。
A worker pours off the lithium and salt mixture that will be taken to a lab for further refining.
工人正在倾倒锂和盐水混合物，这些混合物会被运回实验室作进一步提纯。
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