02/04/2021 | 26m 46s | Video has closed captioning.
Before the beginning of 2020, many people had never heard the word “coronavirus.” But coronaviruses are not new. Researchers have been studying coronaviruses for decades. As COVID-19 appeared in 2019, lives changed forever. However, long before the World Health Organization announced the COVID-19 pandemic, coronaviruses had been making people sick in familiar ways, such as with the common cold.
Problems Playing Video? | Closed Captioning