When we say a meme goes “viral,” we aren't actually saying it's making people sick. But the math behind a meme’s spread suggests it's actually a pretty spot-on analogy.

What would happen to humanity if generosity went viral? Sharing transformative stories from around the world, head of TED Chris Anderson outlines why the time has come for the internet to realize its power to supercharge small acts of...

This video written & produced in collaboration with Aatish Bhatia,
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This video is about how cheap, fast, and LESS sensitive rapid antigen tests might be...

Seasonal illnesses from infectious diseases aren’t a new concept, but a few decades ago public health experts began to notice the same behavior in some non-infectious diseases like breast cancer. These patterns have helped us learn a lot...

If a surface is contaminated with the SARS-CoV-2 virus, how long does it pose a risk of infection?

Several COVID-19 variants are acting uniquely enough to qualify as a distinct strain. And you might have heard about one on the news: the Delta variant. Today we’re going to talk about what it is, why it’s here, and what you need to know...

SARS-CoV-2 is super contagious, and researchers don’t yet know all the reasons why. But by comparing this new virus to the similar one that causes SARS, we’ve found a lot of promising leads that could help us figure out how to beat this...

SIR models for epidemics, showing how tweakign behavior can change an outbreak.

You might be surprised to hear that measles is 10 times more contagious than Ebola or the plague. How do epidemiologists quantify a disease's catchiness?

In the first video in our two part series on HIV and AIDS, we explain how scientists figured out what HIV is, when the infection morphs into AIDS, and where they think the virus originated.

At the heart of outbreaks are people! People are the ones who get sick, transmit diseases, and change the way they live in response to outbreaks. In outbreak science, we can better understand the relationship between people and disease...

We take it for granted that society gets better at tackling infectious disease over time, but when you really think about it the progress we’ve made in the last century is pretty amazing. How does that much progress happen so quickly?...

How infectious is that virus? How good is free birth control? How much should you worry about supplements? Watch and learn!

Howcast - Learn the symptoms of, treatment for, and ways to prevent the STD Hepatitis B from sexpert Jane Bogart in this Howcast video.

Howcast - Learn why sugar gliders are illegal in some states from veterinarian Anthony Pilny in this Howcast video about these funny animals.

Howcast - Learn what happens if a zombie bites you in this Howcast video about how to survive a zombie attack.

Ronaldo Nazario de Lima, known simply as Ronaldo, is a legendary Brazilian footballer who has captivated the world with his incredible skills and infectious personality. Winner of the FIFA World Player of the Year three times, Ronaldo's...

An infectious disease is one caused by a biological agent such as a virus, bacterium, or fungi, that can be passed from one organism to another.
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Explore where germs are found, how they can affect us, and how basic hygiene can help us avoid becoming unwell. Biology - Healthy Living - Learning Points. Pathogens are microbes that cause disease. Good hygiene is the best way to limit...

How an investigation into a skin disease in the American Deep South revealed the true value of a healthy diet - and what happens when you don't consume enough vitamins. Biology - Healthy Living - A lack of specific vitamins can cause...

If you're interested in public health then infectious disease epidemiology and transmission dynamics is something that you have to get your head around. This video is all about how communicable diseases (those caused by viruses,...

Discover the power and importance of laughter through scientific exploration and practical exercises. Learn how laughter is initiated in the brain, its effects on the body, and why it's crucial for physical and emotional health. This...

Epidemic, Endemic, and Eradication Simulations