When health officials in Ohio's Mercer County opened their first Covid-19 vaccine drive-thru clinic in January, available slots filled up instantly, and more than 500 people were vaccinated in a single day.
원문출처 : https://www.cnn.com/2021/04/18/us/covid-vaccine-slowing-us-demand/index.html
원문출처 : https://www.cnn.com/2021/04/18/us/covid-vaccine-slowing-us-demand/index.html