States Vow Extra Scrutiny of Coronavirus Vaccine

Special committees, mostly in Democratic states, will seek to reassure the public that an F.D.A.-approved vaccine is safe and effective amid doubts about the Trump administration’s virus response.

Within weeks, the Food and Drug Administration is expected to review safety and efficacy data for what may be the first Covid-19 vaccine in the United States, with hopes of immunizing some Americans soon after.

But about a half-dozen states and the District of Columbia have planned an extra layer of scrutiny: committees that would vet any vaccine reviewed by the F.D.A.,...