The symptoms match up with coronavirus infection. But like many people in the US, because they’re relatively mild I’m unable to get a test. Testing rates have finally skyrocketed recently, yet per capita we’re still lagging behind, leaving many wondering—myself included—if we truly caught the Covid-19 bug.

That’s a problem.

Knowing the amount of people who have already recovered from the disease would be a game-changer, not just for personal peace of mind but for society as a whole. Although we don’t yet fully understand how long the virus confers immunity for, it’s likely—though severely understudied —that infected and recovered people already have protective immunity. It means that virus-killing antibodies are circulating in our blood, ones that could potentially be harnessed for people with more severe cases; we could be walking anti-coronavirus drug factories.