The four free covid-19 rapid tests President Joe Biden promised in December for every American household have begun arriving in earnest in mailboxes and on doorsteps.
A surge of covid infections spurred wide demand for over-the-counter antigen tests during the holidays: Clinics were overwhelmed with people seeking tests and the few off-the-shelf brands were nearly impossible to find at pharmacies or even online via Amazon. Prices for some test kits cracked the hundred-dollar mark. And the government vowed that its purchase could provide the tests faster and cheaper so people, by simply swabbing at home, could quell the spread of covid.
