U.S. officially tops 300 million COVID-19 shots since inauguration as millions skip out on second…

The U.S. has officially administered more than 300 million coronavirus vaccine doses since Inauguration Day. But the CDC is warning that millions of people have not showed up for their second doses. Dr. Henry Bernstein, a pediatrician at Cohen Children's Medical Center, joins CBSN's Lana Zak to discuss the latest in the nation's vaccination efforts.

Subscribe to the CBS News Channel HERE

Watch CBSN live HERE

Follow CBS News on Instagram HERE

Like CBS News on Facebook HERE

Follow CBS News on Twitter HERE

Get the latest news and best in original reporting from CBS News delivered to your inbox. Subscribe to newsletters HERE

Get your news on the go! Download CBS News mobile apps HERE

Get new episodes of shows you love across devices the next day, stream CBSN and local news live, and watch full seasons of CBS fan favorites like Star Trek Discovery anytime, anywhere with CBS All Access. Try it free!

---

CBSN is the first digital streaming news network that will allow Internet-connected consumers to watch live, anchored news coverage on their connected TV and other devices. At launch, the network is available 24/7 and makes all of the resources of CBS News available directly on digital platforms with live, anchored coverage 15 hours each weekday. CBSN. Always On.