How close are we to a vaccine for Covid-19?

River systems around the world are under stress from various factors ranging from pollution, to agriculture, to extractive industries. In some parts of the world there are regulations to help protect rivers, but in a lot of cases these are just preventative measures for a system ...  Show more

In July 2026, tens of thousands of students took to the streets in India’s capital, demanding reforms to education. The protests followed the leak of medical entrance exam papers but quickly grew to reflect wider concerns about job opportunities for graduates.The movement became ...  Show more

Public health officials and private researchers have vowed to develop a coronavirus vaccine in record time. But could that rush backfire? Guest: Jan Hoffman, a health reporter for The New York Times. For more ...

An effective vaccine is seen as the world’s greatest hope for achieving some kind of return to normal, and the timeline for developing one has been sped up dramatically. But as hard as it’s going to be to make a vaccine quickly, once we do, we’ll have a new problem: Getting it to ...  Show more

A vaccine for Covid-19 could come faster than previous vaccines, but it could still be a year or more before one is widely available. CNN's Chief Medical Correspondent Dr. Sanjay Gupta talks to a clinical trial participant and explains why this vaccine search is breaking barriers ...  Show more

Scientists are racing to make a vaccine for the coronavirus, collaborating across borders in what is usually a secretive and competitive field. But their cooperation has been complicated by national leaders trying to buy first claim on any breakthrough. Today, we explore how t ...