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Public health saved your life today and you don't even know it.
The Invisible Shield, a four-part documentary series, reveals a little-known truth: that public health saved your life today and you probably don’t even know it. But while public health makes modern life possible, the work itself is often underfunded, undervalued, and misunderstood.
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Extended Preview
Preview: Season 1 | 1m 53sVideo has Closed Captions
The Invisible Shield, a four-part documentary series, reveals a little-known truth: that public health saved your life today and you probably don’t even know it. But while public health makes modern life possible, the work itself is often underfunded, undervalued, and misunderstood.
Problems playing video? | Closed Captioning Feedback
How to Watch The Invisible Shield
The Invisible Shield is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.

The Invisible Shield
Explore the discussion guide for The Invisible Shield, a useful tool for extended learning related to the docuseries. The guide pulls out key themes from the show and presents questions that encourage critical thinking, powerful discussion, and expanded understanding regarding public health.Providing Support for PBS.org
Learn Moreabout PBS online sponsorship- Public health saved your life today, but you didn't even know it.
Public health has almost always been invisible.
Then you have a pandemic, and in the pandemic that invisibility is gone and it's not coming back.
We need to tell the story of public health.
- Public health has been protecting us since the Black Death.
- There was a time when you went to work it wasn't clear if you were gonna come home from work.
- Two centuries ago, a third of your kids were likely to die in childhood.
Now, childhood is the safest time of your life.
- Many health problems really can only be improved through public policy.
- Clean water, breathable air, healthy food.
These are protections that are made for all of us.
- Public health is my calling.
It's a call to humanity and a call to service.
- In the last century, we gained 30 years of life expectancy due to public health.
- To me, extending our lives is the most impressive thing that we have ever done as a species.
- If everything's working well, nobody thinks about public health.
- We only fund when there's an emergency.
- We have an invisibility crisis in public health, and it impacts our ability to be appropriately resourced.
- I'm really worried that any pandemic can just, because we have not yet prepared.
- Public health has been undervalued, underfunded, and misunderstood, and that hurts our health.
- In 2017, we began to see a decline in life expectancy.
That is a bad sign for our society.
- Public health is like the foundation of your house, and let me tell you, ours is cracked.
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Preview: S1 | 1m 53s | Public health saved your life today and you don't even know it. (1m 53s)
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Preview: S1 | 30s | Public health saved your life today and you don't even know it. (30s)
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Clip: Ep2 | 2m 57s | Steven Johnson describes the origins of cholera and how interventions stopped the spread. (2m 57s)
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Clip: Ep1 | 2m 5s | Historians and public health practitioners talk public health's impact on life expectancy. (2m 5s)
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Preview: Ep1 | 30s | Public health has doubled our life expectancy, but the system is in jeopardy. (30s)
Cholera and the Modern Public Health System
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Clip: Ep2 | 1m 12s | How the 1854 cholera outbreak led to the birth of the modern public health system. (1m 12s)
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Preview: Ep4 | 30s | Life expectancy is declining. How do we rethink the system before it's too late? (30s)
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Preview: Ep3 | 30s | Disinformation and misunderstanding, skepticism of science, and distrust of government. (30s)
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Preview: Ep2 | 30s | Data has been an essential public health tool since at least the seventeenth century. (30s)
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