As state health officials make plans for a vaccine, many questions remain unanswered. In Pennsylvania, the top health official says she does not know how many doses will be made available initially.
(Image credit: Matt Slocum/AP)
Read more: npr.org
As state health officials make plans for a vaccine, many questions remain unanswered. In Pennsylvania, the top health official says she does not know how many doses will be made available initially.
(Image credit: Matt Slocum/AP)
Read more: npr.org
