Over the past year, the world has become firmly acquainted with terms including social distancing, incubation period, flattening the curve, qu…

In mid-January, authorities estimated more than 2 million people worldwide had died from COVID-19, including more than 400,000 in the United States.

As 2020 unfolded, the world learned just how quickly the novel coronavirus COVID-19 could spread. The World Health Organization noted that, by…