Much of the world became aware of the disease now known as COVID-19 in January, and impressively, a diagnostic PCR test became available the same month. We’ve since seen an explosion in potential variations on that assay, including saliva tests, which bypass the need for scarce swabs, and a slew of techniques that could be considerably faster and cheaper than PCR, including breath tests, at-home antigen tests, a diagnostic that combines loop-mediated isothermal amplification (LAMP) and CRISPR, and even an AI model that detects telltale signs of COVID-19 from CT scans.
While diagnostics gave us hard numbers on SARS-CoV-2’s devastating sweep, the rapid development of vaccines against it allowed us to imagine the pandemic coming under control. mRNA vaccines from Pfizer and Moderna were among the early leaders of the vaccine race, training the spotlight on a newer technique that had been attempted for other diseases but had not yet ...
