This week, nearly three million doses of Pfizer’s Covid-19 vaccine will be delivered to more than 600 vaccination sites around the country. Today, CNN Aviation Correspondent Pete Muntean takes us behind the scenes of this historic operation and tells us about the journey of a vial of vaccine from manufacture to injection.
To learn more about how CNN protect ... Show More
Apr 14
Do Astronauts Float Around While They Sleep?
Four astronauts returned to Earth recently, after a historic 10-day lunar flyby mission in which they ventured farther into space than any human has before. They were part of Artemis II, NASA’s flight to test how well the agency’s Orion spacecraft, and the astronauts, operate in ... Show More
15m 47s
Apr 7
Do You Still Need Your Beta Blocker? Here’s the Latest
For decades, beta blockers were the go‑to prescription after a heart attack - meant to slow the heart rate and prevent future heart attacks. However, doctors are now reconsidering that long‑held approach. This week, Dr. Sanjay Gupta explains who may still need these drugs, who mi ... Show More
11m 39s
Sep 2020
What We Can't Know About a Vaccine
The race for a COVID-19 vaccine entered a new phase recently. Four different vaccine candidates, developed by Moderna, Pfizer, BionTech and Johnson & Johnson, entered final-stage trials, with two others close behind. But we won’t know exactly how these four vaccines work for mont ... Show More
13m 57s
Jul 2021
The Vaccine Mandate Conundrum
<p>In the effort to raise America’s vaccination rate, some agencies and private organizations have turned to the last, and most controversial, weapon in the public health arsenal: vaccine mandates.</p><p>How have the federal government and the White House approached the issue?</p ... Show More
22m 14s