这是我们公司老板FW给我的公司有关流感的要求

" Employees returning to work after recovering from a confirmed or suspected case of H1N1 should confirm that they have/had:

* fell ill more than seven days ago
* been free of symptoms for at least 24 hours
* been passed medically fit for work by their medical adviser "

这和楼下有关7天或24小时无症状大意吻合。