Natural killer cells | The Human Body: Secrets of Your Life Revealed

1: Vaccines | Extra Life: A Short History of Living Longer

Documentary series about the effect of medicine on life expectancy. How the development and delivery of the smallp...

A bacterial infection | Dr Alice Roberts: Don't Die Young

Alice demonstrates what happens when you get a bacterial infection.

Antibodies and vaccines | Dr Alice Roberts: Don't Die Young

Alice explains what an antibody is and how they relate to getting vaccinated.

Edward Jenner's First Vaccination | Extra Life: A Short History of Living Longer

The story of Edward Jenner's discovery that deliberately infecting someone with cowpox could...

How a virus works | Dr Alice Roberts: Don't Die Young

Alice demonstrates (with donuts) how a virus works differently to bacteria.

How do vaccines protect the population? | Horizon

Hannah Fry demonstrates how vaccines help to protect human populations and provide protection to those that cannot receive ...

How the COVID-19 Vaccine Works | Extra Life: A Short History of Living Longer

Dr Kizzmekia Corbett, part of the team that developed one of the COVID-19 vaccinations, explain...

Human defence systems | Secret Universe: The Hidden Life of the Cell

This simulation brings to life the process of a cell's defence against viruses.

Infested! Living with Parasites

Dr Michael Mosley explores the bizarre and fascinating world of parasites by turning his body into a living laboratory and deliberately infes...

Lymph nodes | Dr Alice Roberts: Don't Die Young

Alice explains how the lymph nodes use white blood cells to help the body fight infection and disease.

Ring Vaccination and the Eradication of Smallpox | Extra Life: A Short History of Living Longer

In the late 1960s, William Foege was running out of smallpox vaccine in Niger...

S2E6: The Immune System | Dr Alice Roberts: Don't Die Young

Dr Alice Roberts endures a terrifying test to see how well her immune system works and swab analysis at a student...

T Cells | Made of Stronger Stuff

Psychologist Kimberley Wilson and Dr Xand van Tulleken take a journey through the body's immune system and profile a remarkable white blood ...

Testing for allergies | Dr Alice Roberts: Don't Die Young

Alice does a 'scratch test' to see what she is allergic to and what having an allergy actually means.

The immune system and white blood cells | Dr Alice Roberts: Don't Die Young

Alice describes how the immune system works and what white blood cells do when we're ill.

Variolation; the fore-runner to vaccination | Extra Life: A Short History of Living Longer

Around 1700, an enslaved man who was trafficked to Boston brought with him the kno...

White blood cells and the 'war' on infection | Dr Alice Roberts: Don't Die Young

Alice explains how white blood cells fight infection and where they come from.