Walgreens目前如果test for travel，规定是：
Due to recent changes with federal eligibility criteria, if you don’t meet medical necessity guidelines, payment may be due at the time of your appointment. You may submit your receipt to your insurance to see if you are eligible for reimbursement.
Rapid是2小时，$129但好像不是PCR，Rapid NAAT Test
CVS的PCR, $100, Results within 1-2 days
Rapid is PCR. Rapid-result (PCR) Results within hours.
Patients with insurance should not have any out-of-pocket costs for a covered COVID-19 test, but check with your health plan to confirm before scheduling a test.
整体看来CVS去免费（用保险）rapid PCR test似乎可行，作为一测。第二次还是得去交费，30minutes的。