USPS现提供免费的at-home新冠检测试剂盒（每户限四个） 有需要的可以去领

这个是USPS的领取链接（无需注册）

以下引自USPS网站：
“Residential households in the U.S. can order one set of 4 free at-home tests from USPS.com. Here’s what you need to know about your order:

• Limit of one order per residential address
• One order includes 4 individual rapid antigen COVID-19 tests
• Orders will ship free starting in late January”