NIAID Director Anthony Fauci sheds light on vaccines, variants, and a return to normalcy.
Why the CDC may update its guidance on masking, plus more science news stories from the week.
The placenta is the only organ that can be grown temporarily and then discarded—but it’s hard to study while it’s doing its job.
President Biden’s national COVID-19 relief effort aims to administer 100 million vaccinations in 100 days.
SciFri listeners called with questions ranging from how antibodies work to who should get jabbed. A microbiologist provides the answers.
The charges, which came as a surprise to many residents, come seven years after the health crisis began.