Technologist and futurist Bill Joy talks about several big worries for humanity -- and several big hopes in the fields of health, education and future tech.

If we can get it to work in humans, it will save a lot of lives.

Discover natural selection as a mechanism of evolution with the Amoeba Sisters. This video also uncovers the relationship of natural selection and antibiotic resistance in bacteria and emphasizes biological fitness. Note: This video is...

In 2014, the world avoided a global outbreak of Ebola, thanks to thousands of selfless health workers -- plus, frankly, some very good luck. In hindsight, we know what we should have done better. So, now's the time, Bill Gates suggests,...

The Johnson & Johnson COVID-19 vaccine is now the third approved for emergency use authorization in the United States, and it's a little different from its predecessors.

The history of science up until the Cold War is often overshadowed by the Manhattan Project. But, today we are going to talk about advances in biomedicine, or healthcare based on a biological understanding of human bodies and diseases.

Ethan Lindenberger never got vaccinated as a kid. So one day, he went on Reddit and asked a simple question: "Where do I go to get vaccinated?" The post went viral, landing Lindenberger in the middle of a heated debate about vaccination...

In 2007, as the world worried about a possible avian flu epidemic, Laurie Garrett, author of "The Coming Plague," gave this powerful talk to a small TED University audience. Her insights from past pandemics are suddenly more relevant...

Right now, experts say a vaccine for COVID-19 is a year or more away. But as far away as it sounds, it’s only within the realm of possibility because scientists are speeding up the vaccine development process in surprising ways.

What happens if you get infected with the coronavirus? Who's most at risk? How can you protect yourself? Public health expert David Heymann, who led the global response to the SARS outbreak in 2003, shares the latest findings about...

For almost a decade, scientists chased the source of a deadly new virus through China’s tallest mountains and most isolated caverns. They finally found it in the bats of Shitou Cave. The virus in question was a coronavirus that caused an...

Explore the basics of how antibiotics, antivirals, and vaccines work to help your immune system in the fight against pathogens! This Amoeba Sisters video also briefly introduces the lines of defense in the immune system and discusses how...

We've been spending a lot fo time thinking about one vaccine: the COVID vaccine. But vaccines have been around since long before SARS-CoV-2 showed up, so let's learn about some of those other vaccines.

One year to eighteen months might seem like a while to wait for a COVID-19 vaccine, but there's a good reason finding and approving a candidate takes a whole lot of time.

If you lost your arm almost immediately after being vaccinated, would you still be vaccinated?

It seems like we wait for a disastrous disease outbreak before we get serious about making a vaccine for it. Seth Berkley lays out the market realities and unbalanced risks behind why we aren't making vaccines for the world's biggest...

Scientists have learned more about the UK and South American variant of the COVID-19 virus, and how they might be affected by vaccines. The news isn't good, but behind the scary headlines is important research that can help us be better...

Viruses are wildly successful organisms. There are about 100 million times as many virus particles on Earth as there are stars in the observable universe. Even so, viruses can and do go extinct. So, what is the possibility of the virus...

To address the problem of counterfeit goods, African entrepreneurs like Bright Simons have come up with innovative and effective ways to confirm products are genuine. Now he asks: Why aren't these solutions everywhere? From...

"What would you attempt to do if you knew you could not fail?" asks Regina Dugan, then director of DARPA, the Defense Advanced Research Projects Agency. In this breathtaking talk she describes some of the extraordinary projects -- a...

Two new versions of the coronavirus that causes COVID-19, the UK and South African variants, were announced in December. They've spread quickly in their countries of origin, and have begun popping up around the world. Join us to find out...

Some countries are planning to wait up to 12 weeks to administer second doses of COVID-19 vaccines. Will this slow the virus?

From MMR boosters to tetanus, you'll probably get a lot of shots in your life. And one thing you might notice is that some of them don't feel like much, but some of them can make your arm reallllly sore! Why is that?

There's a vaccine being developed now that would protect you against every strain of the flu— even ones that don't exist yet. But influenza is constantly mutating, so is a universal vaccine even possible? And how do you design a vaccine...