WFTS: When Will We Reach Herd Immunity?
One expert told our sister station it would require at least 500 million doses of vaccines.
![](https://ewscripps.brightspotcdn.com/9e/03/c0ff1ce24e2cbb5ca613347670de/1611843097-6rfjat.jpg)
![](https://ewscripps.brightspotcdn.com/9e/03/c0ff1ce24e2cbb5ca613347670de/1611843097-6rfjat.jpg)
Posted
Copyright 2024 Scripps Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.