Peter A. McCullough, a former cardiologist who promoted unproven treatments like ivermectin and hydroxychloroquine at the ...

This week, mRNA vaccines are set to face intense scrutiny from critics in Congress. Here's an explainer of how we know they are safe and effective.

For groups younger than 65 or without specific chronic conditions, postmarketing trials will be needed to open access.

But the framework has perhaps created as much confusion as clarity. Broadly, the FDA said it will limit approval of Covid-19 ...