After another year of living with COVID-19, we have a greater understanding of the respiratory illness than we did nearly three years ago, when the World Health Organization declared a pandemic on March 11, 2020.
In the past year alone, dozens of studies were published in both peer-reviewed journals and as preprints — including on long COVID, the omicron variant, reinfections, the vaccines and more — in an effort to help expand the world’s knowledge of the constantly evolving virus.
To date, more than 100 million people in the U.S. have tested positive for COVID-19 and more than 1 million have died from it, according to Johns Hopkins University. Worldwide, there have been over 657 million confirmed cases of COVID-19 in total.
