Cast your mind back to 2020, if you can bear it. As the year progressed, so did the impact of covid-19. We were warned that wearing face coverings, disinfecting everything we touched, and keeping away from other people were some of the only ways we could protect ourselves from the potentially fatal disease.
Thankfully, a more effective form of protection was in the works. Scientists were developing all-new vaccines at rapid speed. The virus behind covid-19 was sequenced in January, and clinical trials of vaccines using messenger RNA started in March. By the end of the year, the US Food and Drug Administration issued emergency-use authorization for these vaccines, and vaccination efforts took off.
Image: STEPHANIE ARNETT/MITTR; ENVATO