Coronavirus disease 2019 (COVID-19) has spread to almost every country in the world, causing over five million deaths and forcing many governments to enact costly and restrictive lockdown measures. These have included mandatory mask-wearing, the closing of public spaces, and even full lockdowns/stay-at-home orders.
While mass vaccination schemes have allowed some developed countries to remove these restrictions, many warn of new variants emerging. The Delta strain currently accounts for over 90% of new cases and has shown the ability to evade both vaccine-induced and natural immunity.
