Recent studies showing that a single dose of vaccine could boost immunity for former COVID-19 patients.
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.