The next outbreak? We’re not ready | Bill Gates | TED

37,685,089 views ・ 2015-04-03

TED


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When I was a kid,
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the disaster we worried about most was a nuclear war.
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That's why we had a barrel like this down in our basement,
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filled with cans of food and water.
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When the nuclear attack came,
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we were supposed to go downstairs, hunker down, and eat out of that barrel.
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Today the greatest risk of global catastrophe
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doesn't look like this.
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Instead, it looks like this.
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If anything kills over 10 million people in the next few decades,
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it's most likely to be a highly infectious virus
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rather than a war.
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Not missiles, but microbes.
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Now, part of the reason for this is that
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we've invested a huge amount in nuclear deterrents.
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But we've actually invested very little in a system to stop an epidemic.
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We're not ready for the next epidemic.
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Let's look at Ebola.
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I'm sure all of you read about it in the newspaper,
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lots of tough challenges.
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I followed it carefully through the case analysis tools
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we use to track polio eradication.
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And as you look at what went on,
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the problem wasn't that there was a system that didn't work well enough,
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the problem was that we didn't have a system at all.
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In fact, there's some pretty obvious key missing pieces.
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We didn't have a group of epidemiologists ready to go, who would have gone,
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seen what the disease was, seen how far it had spread.
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The case reports came in on paper.
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It was very delayed before they were put online
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and they were extremely inaccurate.
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We didn't have a medical team ready to go.
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We didn't have a way of preparing people.
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Now, Médecins Sans Frontières did a great job orchestrating volunteers.
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But even so, we were far slower than we should have been
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getting the thousands of workers into these countries.
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And a large epidemic would require us to have hundreds of thousands of workers.
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There was no one there to look at treatment approaches.
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No one to look at the diagnostics.
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No one to figure out what tools should be used.
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As an example, we could have taken the blood of survivors,
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processed it, and put that plasma back in people to protect them.
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But that was never tried.
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So there was a lot that was missing.
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And these things are really a global failure.
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The WHO is funded to monitor epidemics, but not to do these things I talked about.
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Now, in the movies it's quite different.
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There's a group of handsome epidemiologists ready to go,
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they move in, they save the day, but that's just pure Hollywood.
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The failure to prepare could allow the next epidemic
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to be dramatically more devastating than Ebola
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Let's look at the progression of Ebola over this year.
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About 10,000 people died,
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and nearly all were in the three West African countries.
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There's three reasons why it didn't spread more.
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The first is that there was a lot of heroic work by the health workers.
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They found the people and they prevented more infections.
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The second is the nature of the virus.
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Ebola does not spread through the air.
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And by the time you're contagious,
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most people are so sick that they're bedridden.
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Third, it didn't get into many urban areas.
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And that was just luck.
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If it had gotten into a lot more urban areas,
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the case numbers would have been much larger.
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So next time, we might not be so lucky.
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You can have a virus where people feel well enough while they're infectious
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that they get on a plane or they go to a market.
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The source of the virus could be a natural epidemic like Ebola,
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or it could be bioterrorism.
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So there are things that would literally make things a thousand times worse.
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In fact, let's look at a model of a virus spread through the air,
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like the Spanish Flu back in 1918.
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So here's what would happen:
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It would spread throughout the world very, very quickly.
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And you can see over 30 million people died from that epidemic.
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So this is a serious problem.
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We should be concerned.
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But in fact, we can build a really good response system.
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We have the benefits of all the science and technology that we talk about here.
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We've got cell phones
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to get information from the public and get information out to them.
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We have satellite maps where we can see where people are and where they're moving.
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We have advances in biology
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that should dramatically change the turnaround time to look at a pathogen
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and be able to make drugs and vaccines that fit for that pathogen.
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So we can have tools,
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but those tools need to be put into an overall global health system.
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And we need preparedness.
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The best lessons, I think, on how to get prepared
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are again, what we do for war.
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For soldiers, we have full-time, waiting to go.
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We have reserves that can scale us up to large numbers.
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NATO has a mobile unit that can deploy very rapidly.
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NATO does a lot of war games to check, are people well trained?
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Do they understand about fuel and logistics
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and the same radio frequencies?
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So they are absolutely ready to go.
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So those are the kinds of things we need to deal with an epidemic.
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What are the key pieces?
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First, we need strong health systems in poor countries.
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That's where mothers can give birth safely,
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kids can get all their vaccines.
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But, also where we'll see the outbreak very early on.
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We need a medical reserve corps:
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lots of people who've got the training and background
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who are ready to go, with the expertise.
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And then we need to pair those medical people with the military.
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taking advantage of the military's ability to move fast, do logistics
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and secure areas.
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We need to do simulations,
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germ games, not war games, so that we see where the holes are.
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The last time a germ game was done in the United States
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was back in 2001, and it didn't go so well.
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So far the score is germs: 1, people: 0.
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Finally, we need lots of advanced R&D in areas of vaccines and diagnostics.
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There are some big breakthroughs, like the Adeno-associated virus,
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that could work very, very quickly.
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Now I don't have an exact budget for what this would cost,
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but I'm quite sure it's very modest compared to the potential harm.
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The World Bank estimates that if we have a worldwide flu epidemic,
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global wealth will go down by over three trillion dollars
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and we'd have millions and millions of deaths.
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These investments offer significant benefits
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beyond just being ready for the epidemic.
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The primary healthcare, the R&D,
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those things would reduce global health equity
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and make the world more just as well as more safe.
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So I think this should absolutely be a priority.
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There's no need to panic.
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We don't have to hoard cans of spaghetti or go down into the basement.
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But we need to get going, because time is not on our side.
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In fact, if there's one positive thing that can come out of the Ebola epidemic,
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it's that it can serve as an early warning, a wake-up call, to get ready.
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If we start now, we can be ready for the next epidemic.
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Thank you.
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(Applause)
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