@shawphd @wsbgnl There is no lack of tests. People can get free tests many different ways or buy tests for $10 or less.
The reason there is such convoluted guidance about testing negative is to give employers cover to require employees back in 5 days.
@shawphd@wsbgnl不缺少测试。人们可以通过多种不同的方式获得免费测试，或者以10美元或更少的价格购买测试。
之所以有如此复杂的阴性检测指南，是为了给雇主提供保险，要求员工在5天内回来。