
Four years ago, on November 30, 2019, the first confirmed case of COVID-19 was detected in a man in Wuhan, China. It would still be over a month before the SARS-CoV-2 virus was fully identified, but it would go on to kill no less than 7 million people globally and forever alter life on this planet.
As we have changed, so has the virus. It's natural for pathogens to evolve workarounds to our immunity and, a few months ago, scientists detected a variant of SARS-CoV-2 that seemed alarmingly capable of infecting mass amounts of people, breaking through the immunity acquired from previous infections and vaccines.