Covid-19 vaccine demand is slowing in parts of the US

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.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.