疫苗因抗击疾病而闻名。 Vaccines are celebrated for their part in fighting disease.
但是，越来越多的人 But, a growing group of people
似乎相信他们危害我们的健康，而不是保护它。 seem to believe that they endanger our health, instead of protecting it.
互联网上充满了关于过敏反应的故事， The Internet is full of stories about allergic reactions,
残疾的发生， the onset of disabilities,
接种预约后甚至死亡。 and even death following vaccination appointments.
而且，真正的疫苗可能会产生副作用。 And, it's true vaccines can have side effects.
让我们来看看它们是如何工作的，以及它们到底有多危险。 Let's look at how they work, and how dangerous they really are.
你的免疫系统是由数十亿细胞组成的复杂军队。 Your immune system is a complex army of billions of cells.
士兵， Soldiers,
智能细胞 intelligence cells,
和武器工厂。 and weapons factories.
每天都有无数次袭击， Every day, you're attacked countless times,
但是你的免疫士兵通常只会处理这个问题， but your immune soldiers alone usually deal with that,
所以你甚至都没注意到。 so you don't even notice.
如果感染变得严重， If an infection becomes serious though,
我们的情报小组收集有关攻击者的情报 our intelligence cells gather intel about the attackers
并激活我们的武器工厂。 and activate our weapons factories.
你知道武器：抗体。 You know the weapon: antibodies.
它们就像专门用于打击入侵者的目标导弹。 They're like targeted missiles produced specifically to combat the invader.
不幸的是，这个过程需要几天时间才能完成。 Unfortunately, this process takes several days to complete.
这给入侵者留下了很多时间来造成伤害。 That gives intruders a lot of time to do damage.
与流行的智慧相反， Contrary to popular wisdom,
什么不杀你不会让你变得更强壮。 what doesn't kill you doesn't make you stronger.
我们的身体真的不想一遍又一遍地打击严重的战争， Our bodies really don't want to fight serious wars over and over,
所以我们的免疫系统提出了一种巧妙的方式 so our immune system came up with an ingenious way
随着时间的推移变得越来越强大。 to get stronger and stronger over time.
如果我们打一个足够危险的敌人来触发我们的重型武器， If we fight an enemy that is dangerous enough to trigger our heavy weapons,
我们的免疫系统自动创建记忆细胞。 our immune system automatically creates memory cells.
记忆细胞在深度睡眠中保持多年。 Memory cells remain in our body for years, in a deep sleep.
他们什么也不做，只记得。 They do nothing but remember.
当敌人第二次攻击时， When an enemy attacks for a second time,
沉睡的记忆细胞醒来， the slumbering memory cells awaken,
并命令协调攻击和抗体的产生。 and order coordinated attacks and the production of antibodies.
这是如此快速有效， This is so fast and effective,
你曾经击败过的许多感染都不会让你再次生病。 that many infections you beat once will never make you sick again.
你甚至可能永远免疫它们。 You might even be immune against them forever.
这也是小孩子经常生病的原因; Which is also why little kids are constantly ill;
他们还没有足够的存储单元。 they don't have enough memory cells yet.
这种美丽的自然机制是我们在使用疫苗时所建立的。 And this beautiful natural mechanism is what we build on when we use vaccines.
疫苗如何运作 How Vaccines Work
与存储单元一样大， As great as memory cells are,
通过感染获得它们是令人不愉快的，有时是危险的。 obtaining them through an infection is unpleasant and sometimes dangerous.
疫苗是诱骗我们的身体制造记忆细胞的一种方式， Vaccines are a way of tricking our bodies into making memory cells,
并对疾病免疫。 and becoming immune to a disease.
他们假装是一种危险的感染。 They pretend to be a dangerous infection.
这样做的一种方法是注入不会造成伤害的入侵者。 One way of doing this is to inject invaders that can't do harm.
例如，通过杀死它们，或将它们撕成碎片。 For example, by killing them, or by ripping them into pieces.
我们的免疫系统非常容易处理这些疫苗。 Our immune systems deal with these kinds of vaccines pretty easily.
有时候，有必要让我们的免疫系统更加努力， Sometimes, it's necessary to make our immune system work harder though,
产生更多的记忆细胞。 to produce even more memory cells.
活疫苗是真正的交易。 Live vaccines are the real deal.
能够击退的敌人比死者更具挑战性。 An enemy that can punch back is a bigger challenge than a dead one.
但这听起来也像是一种可怕的想法。 But this also sounds like a sort-of horrible idea.
如果细菌获胜怎么办？ What if the germs win?
为了避免这种情况，我们在实验室培育了一种真实细菌的表亲。 To avoid that, we breed a sort-of weak cousin of the real germ in the lab.
足够强大，可以惹恼免疫系统，并创造足够的记忆细胞。 Just powerful enough to annoy the immune system, and create enough memory cells.
好的，所以这些是疫苗使用的基本原则。 Okay, so these are the basic principles of vaccine use.
它们引起我们身体的自然反应 They provoke a natural reaction in our bodies
这使我们对非常危险的疾病免疫。 that makes us become immune against very dangerous diseases.
有些像流感病毒一样经常发生变异 Some, like the flu virus, mutate so often
我们每年都需要一种新疫苗， that we need a new vaccine every year,
但大多数疫苗可以保护我们多年，甚至一生。 but most vaccines protect us for years, or even a lifetime.
但是，有一个问题。 But, there's a catch.
像生活中的一切一样，疫苗有另一面： Like everything in life, vaccines have another side:
副作用。 Side effects.
他们是什么，如果您的孩子开发了什么会发生什么？ What are they, and what happens if your child develops one?
疫苗的风险 The Risks of Vaccines
直接比较疫苗的副作用与疾病的影响是很复杂的。 It's complicated to directly compare the side effects of vaccines with the effects of diseases.
例如， For example,
数以亿计的人在西方接种麻疹疫苗， hundreds of millions of people are vaccinated against measles in the West,
但2018年欧洲仅有83,000例病例。 but there were only 83,000 cases in Europe in 2018.
因此，数字不同，甚至温和的副作用似乎都很可怕 So, with numbers that different, even mild side effects can seem scary
与我们不再看到的疾病的不良影响相比。 compared to the bad effects of a disease that we don't see as much anymore.
在麻疹疫苗于1963年问世之前， Before the measles vaccine became available in 1963,
几乎每个地球上的孩子都会在某个时刻感染麻疹。 virtually every single child on Earth contracted measles at some point.
估计在20世纪50年代有1.35亿个病例。 An estimated 135 million cases in the 1950s.
每一年。 Every single year.
但麻疹真的在2019年那么危险吗？ But are measles really that dangerous in the year 2019?
凭借我们先进的医疗保健和新技术， With our advanced healthcare and new technologies,
他们是否值得接种疫苗的风险？ are they worth the risk of vaccine side effects?
让我们根据实数进行思考实验。 Let's do a thought experiment based on real numbers.
想象一个处于平行世界的发达国家。 Imagine a developed country in a parallel world.
它有良好的医疗保健，但人们停止接种疫苗。 It has good healthcare but people stop vaccinating.
在这种情况下，假设有一千万儿童患上了麻疹。 In this scenario, let's say ten million children caught measles.
怎么了？ What happens?
九百八十万，或98％，将发高烧和非常不愉快的皮疹。 Nine million eight hundred thousand, or 98%, will get a high fever and a very unpleasant rash.
其中多达80万人，或8％，将患有危险的腹泻。 Up to 800,000 of them, or 8%, will suffer from dangerous diarrhea.
700,000或7％将患有耳部感染，这可能导致永久性听力损失。 700,000, or 7%, will suffer from an ear infection, which can lead to permanent hearing loss.
600,000名儿童（或6％）患有肺炎 - 这是麻疹最危险的影响。 600,000 kids, or 6%, will suffer from pneumonia -- the most dangerous effect of measles.
仅此一项就会导致12,000名儿童死亡。 It, alone, will kill 12,000 children.
多达10,000名儿童，或0.1％，将得到脑炎。 Up to 10,000 children, or 0.1%, will get encephalitis.
2,500名儿童，即0.025％，将与SSPE签订合同， 2,500 kids, or 0.025%, will contract SSPE,
麻疹病毒在大脑中徘徊的疾病 a disease where the measles virus lingers in their brain
并在几年后杀死他们。 and kills them a few years later.
合在一起， Taken together,
大约250万儿童将受到麻疹的严重影响。 around 2.5 million children will suffer from somewhat serious effects from measles.
而且，约有20,000名儿童将被麻疹杀死。 And, about 20,000 children will be killed by measles.
它并不止于此。 It doesn't stop here though.
击败麻疹的孩子的免疫系统严重受损 The kids who beat measles are left with a severely damaged immune system
这需要很多时间来重新生成。 that needs a lot of time to regenerate.
是时候让其他疾病做进一步的伤害了。 Time for other diseases to do further damage.
除此之外，几乎可以保证 Aside from that, what's almost guaranteed
是你的孩子将在两周内度过一段非常糟糕的时间。 is that your kids will have a really bad time for about two weeks.
好的，但疫苗怎么样？ Okay, but what about vaccines?
看待这些风险也是公平的。 It's only fair to look at these risks, too.
那么，让我们重复我们的思想实验。 So, let's repeat our thought experiment.
但是，这一次，我们为1000万MMR儿童接种了疫苗。 But, this time, we vaccinate ten million children with MMR.
这里理论上会发生什么？ What would theoretically happen here?
接种疫苗后， After being vaccinated,
我们的1000万孩子中，大约有10％的孩子发烧。 of our 10 million kids, around ten percent get a fever.
500,000或5％会出现轻度皮疹。 500,000, or 5%, will get a mild rash.
高达100，或0.001％， Up to 100, or 0.001%,
可能有严重的过敏反应，必须接受治疗。 might have a serious allergic reaction and will have to be treated.
最多十个男孩，或0.0001％， Up to ten boys, or 0.0001%,
可能会发生生殖器炎症。 might get inflammation of the genitalia.
最多十个孩子，或0.0001％， And up to ten kids in total, or 0.0001%,
可能会产生最严重的副作用：脑炎。 might get the most serious side effect: encephalitis.
因此，我们为一千万儿童接种了疫苗。 So, we vaccinated ten million kids.
总共有大约一百二十个副作用有点严重。 In total, around one hundred and twenty had side effects that were somewhat serious.
由于发达地区的良好医疗，几乎所有地区都可以。 Thanks to good medical treatment in developed regions, almost all of them will be fine.
自闭症怎么样？ What about autism?
自闭症和疫苗的联系源于一个来源 The connection of autism and vaccines stems from one source
这无数次都被证实了。 that has been disproven countless times.
我们将链接到说明中的进一步阅读和视频。 We'll link to further reading and videos in the description.
但是，在2019年，公平地说疫苗不会导致自闭症。 But, in 2019, it's fair to say that vaccines do not cause autism.
好吧，但死亡怎么样？ All right, but what about deaths?
很难说我们1000万接种疫苗的孩子中的一个人是否会死亡。 It's really hard to say if even a single one of our 10 million vaccinated kids would die.
我们确实很努力，并与很多不同的专家交谈过。 We really did look hard and talked to a lot of different experts.
如果我们忽略自我报告， If we ignore self-reporting,
我们只能提出一些记录在案的案例 we could only come up with a tiny handful of documented cases
自1971年以来，所有接种过MMR疫苗的数亿儿童都是如此。 for all the hundreds of millions of children who received the MMR vaccine since 1971.
对于您的孩子来说，麻疹的危险性要高出数千倍 Measles are many, many thousands of times more dangerous for your child
甚至是疫苗副作用的绝对最坏情况。 than even the absolute worst case of vaccine side effects.
你必须用巨大的放大镜寻找致命的疫苗副作用 You have to search for lethal vaccine side effects with a huge magnifying glass
即使在那时，也很难找到确认的病例。 and, even then, it's very hard to find confirmed cases.
然而，麻疹死亡是真实的，很容易找到。 While, deaths from measles are real and easy to find.
仅在2017年，全世界就有110,000人死于麻疹。 In 2017 alone, 110,000 people died from measles worldwide.
据统计，今天有300名儿童将死于麻疹。 Statistically, today, 300 children will die of measles.
一个自视频开始以来。 One since this video started.
您可以将疫苗与安全带进行比较。 You can compare vaccines to seatbelts.
是否有人因安全带被人杀死而发生奇怪的怪异事故？ Are there weird freak accidents where someone gets killed by their seatbelt?
嗯，是。 Well, yes.
但是，你个人认为不给你的孩子系安全带更安全吗？ But, do you personally think it's safer to not put a seatbelt on your kid?
等一等！ Wait a second!
如果你的孩子真的过敏怎么办？ What if your kid is actually allergic?
如果我们所说的一切都不适用于您的具体情况怎么办？ What if none of the things we've said applies to your specific situation?
在这种情况下，您需要成为所有人中最好的疫苗接种促进者。 In this case, you need to become the greatest vaccination promoter of all.
因为如果你的孩子不能接种疫苗，只有集体才能保护他们。 Because if your children can't be vaccinated, only the collective can protect them.
这被称为群体免疫力， This is called herd immunity,
这是唯一可以保护你未接种疫苗的孩子的东西。 and it's the only thing that can protect your unvaccinated child.
群体免疫力意味着足够的人免疫疾病， Herd immunity means that enough people are immune to a disease,
它不能传播，并在它到达受害者之前死亡。 that it can't spread, and dies before it reaches its victims.
但要仅为麻疹做到这一点， But to accomplish this for measles alone,
您周围95％的人需要接种疫苗。 95% of the people around you need to be vaccinated.
结论 Conclusion
关于疫苗的争论的问题在于它不是在公平的竞争环境中进行的。 The problem with the debate about vaccines is that it's not fought on a level playing field.
虽然亲疫苗方面与研究和统计数据有争议， While the pro-vaccine side argues with studies and statistics,
反对他们的论点通常是直觉的混合物， the arguments against them are usually a wild mixture of gut feeling,
轶事和错误的信息。 anecdotes, and misinformation.
感情往往不受事实的影响。 And feelings are often immune to facts.
我们不会通过尖叫来说服任何人。 We'll not convince anybody by screaming at them.
但我们无法躲避反疫苗阴谋所做的事实。 But we can't hide from the reality of what anti-vaccine conspiracies do.
他们杀死太小的婴儿不能接种疫苗。 They kill babies too young to be vaccinated.
他们杀死了不幸的健康儿童。 They kill healthy children that are just unlucky.
它们使严重疾病从濒临灭绝的边缘带回来。 They bring serious diseases back from the verge of extinction.
而且，疫苗最大的副作用是死亡儿童减少。 And, the biggest side effect of vaccines is fewer dead children.
疫苗是我们拥有的最强大的工具之一 Vaccines are one of the most powerful tools we have
消灭我们大多数人已经忘记的怪物。 to eradicate the monsters that most of us have already forgotten.
我们不要把野兽带回来！ Let's not bring the beasts back!
疫苗因抗击疾病而闻名。 Vaccines are celebrated for their part in fighting disease.
但是，越来越多的人 But, a growing group of people
似乎相信他们危害我们的健康，而不是保护它。 seem to believe that they endanger our health, instead of protecting it.
互联网上充满了关于过敏反应的故事， The Internet is full of stories about allergic reactions,
残疾的发生， the onset of disabilities,
接种预约后甚至死亡。 and even death following vaccination appointments.
而且，真正的疫苗可能会产生副作用。 And, it's true vaccines can have side effects.
让我们来看看它们是如何工作的，以及它们到底有多危险。 Let's look at how they work, and how dangerous they really are.
你的免疫系统是由数十亿细胞组成的复杂军队。 Your immune system is a complex army of billions of cells.
士兵， Soldiers,
智能细胞 intelligence cells,
和武器工厂。 and weapons factories.
每天都有无数次袭击， Every day, you're attacked countless times,
但是你的免疫士兵通常只会处理这个问题， but your immune soldiers alone usually deal with that,
所以你甚至都没注意到。 so you don't even notice.
如果感染变得严重， If an infection becomes serious though,
我们的情报小组收集有关攻击者的情报 our intelligence cells gather intel about the attackers
并激活我们的武器工厂。 and activate our weapons factories.
你知道武器：抗体。 You know the weapon: antibodies.
它们就像专门用于打击入侵者的目标导弹。 They're like targeted missiles produced specifically to combat the invader.
不幸的是，这个过程需要几天时间才能完成。 Unfortunately, this process takes several days to complete.
这给入侵者留下了很多时间来造成伤害。 That gives intruders a lot of time to do damage.
与流行的智慧相反， Contrary to popular wisdom,
什么不杀你不会让你变得更强壮。 what doesn't kill you doesn't make you stronger.
我们的身体真的不想一遍又一遍地打击严重的战争， Our bodies really don't want to fight serious wars over and over,
所以我们的免疫系统提出了一种巧妙的方式 so our immune system came up with an ingenious way
随着时间的推移变得越来越强大。 to get stronger and stronger over time.
如果我们打一个足够危险的敌人来触发我们的重型武器， If we fight an enemy that is dangerous enough to trigger our heavy weapons,
我们的免疫系统自动创建记忆细胞。 our immune system automatically creates memory cells.
记忆细胞在深度睡眠中保持多年。 Memory cells remain in our body for years, in a deep sleep.
他们什么也不做，只记得。 They do nothing but remember.
当敌人第二次攻击时， When an enemy attacks for a second time,
沉睡的记忆细胞醒来， the slumbering memory cells awaken,
并命令协调攻击和抗体的产生。 and order coordinated attacks and the production of antibodies.
这是如此快速有效， This is so fast and effective,
你曾经击败过的许多感染都不会让你再次生病。 that many infections you beat once will never make you sick again.
你甚至可能永远免疫它们。 You might even be immune against them forever.
这也是小孩子经常生病的原因; Which is also why little kids are constantly ill;
他们还没有足够的存储单元。 they don't have enough memory cells yet.
这种美丽的自然机制是我们在使用疫苗时所建立的。 And this beautiful natural mechanism is what we build on when we use vaccines.
疫苗如何运作 How Vaccines Work
与存储单元一样大， As great as memory cells are,
通过感染获得它们是令人不愉快的，有时是危险的。 obtaining them through an infection is unpleasant and sometimes dangerous.
疫苗是诱骗我们的身体制造记忆细胞的一种方式， Vaccines are a way of tricking our bodies into making memory cells,
并对疾病免疫。 and becoming immune to a disease.
他们假装是一种危险的感染。 They pretend to be a dangerous infection.
这样做的一种方法是注入不会造成伤害的入侵者。 One way of doing this is to inject invaders that can't do harm.
例如，通过杀死它们，或将它们撕成碎片。 For example, by killing them, or by ripping them into pieces.
我们的免疫系统非常容易处理这些疫苗。 Our immune systems deal with these kinds of vaccines pretty easily.
有时候，有必要让我们的免疫系统更加努力， Sometimes, it's necessary to make our immune system work harder though,
产生更多的记忆细胞。 to produce even more memory cells.
活疫苗是真正的交易。 Live vaccines are the real deal.
能够击退的敌人比死者更具挑战性。 An enemy that can punch back is a bigger challenge than a dead one.
但这听起来也像是一种可怕的想法。 But this also sounds like a sort-of horrible idea.
如果细菌获胜怎么办？ What if the germs win?
为了避免这种情况，我们在实验室培育了一种真实细菌的表亲。 To avoid that, we breed a sort-of weak cousin of the real germ in the lab.
足够强大，可以惹恼免疫系统，并创造足够的记忆细胞。 Just powerful enough to annoy the immune system, and create enough memory cells.
好的，所以这些是疫苗使用的基本原则。 Okay, so these are the basic principles of vaccine use.
它们引起我们身体的自然反应 They provoke a natural reaction in our bodies
这使我们对非常危险的疾病免疫。 that makes us become immune against very dangerous diseases.
有些像流感病毒一样经常发生变异 Some, like the flu virus, mutate so often
我们每年都需要一种新疫苗， that we need a new vaccine every year,
但大多数疫苗可以保护我们多年，甚至一生。 but most vaccines protect us for years, or even a lifetime.
但是，有一个问题。 But, there's a catch.
像生活中的一切一样，疫苗有另一面： Like everything in life, vaccines have another side:
副作用。 Side effects.
他们是什么，如果您的孩子开发了什么会发生什么？ What are they, and what happens if your child develops one?
疫苗的风险 The Risks of Vaccines
直接比较疫苗的副作用与疾病的影响是很复杂的。 It's complicated to directly compare the side effects of vaccines with the effects of diseases.
例如， For example,
数以亿计的人在西方接种麻疹疫苗， hundreds of millions of people are vaccinated against measles in the West,
但2018年欧洲仅有83,000例病例。 but there were only 83,000 cases in Europe in 2018.
因此，数字不同，甚至温和的副作用似乎都很可怕 So, with numbers that different, even mild side effects can seem scary
与我们不再看到的疾病的不良影响相比。 compared to the bad effects of a disease that we don't see as much anymore.
在麻疹疫苗于1963年问世之前， Before the measles vaccine became available in 1963,
几乎每个地球上的孩子都会在某个时刻感染麻疹。 virtually every single child on Earth contracted measles at some point.
估计在20世纪50年代有1.35亿个病例。 An estimated 135 million cases in the 1950s.
每一年。 Every single year.
但麻疹真的在2019年那么危险吗？ But are measles really that dangerous in the year 2019?
凭借我们先进的医疗保健和新技术， With our advanced healthcare and new technologies,
他们是否值得接种疫苗的风险？ are they worth the risk of vaccine side effects?
让我们根据实数进行思考实验。 Let's do a thought experiment based on real numbers.
想象一个处于平行世界的发达国家。 Imagine a developed country in a parallel world.
它有良好的医疗保健，但人们停止接种疫苗。 It has good healthcare but people stop vaccinating.
在这种情况下，假设有一千万儿童患上了麻疹。 In this scenario, let's say ten million children caught measles.
怎么了？ What happens?
九百八十万，或98％，将发高烧和非常不愉快的皮疹。 Nine million eight hundred thousand, or 98%, will get a high fever and a very unpleasant rash.
其中多达80万人，或8％，将患有危险的腹泻。 Up to 800,000 of them, or 8%, will suffer from dangerous diarrhea.
700,000或7％将患有耳部感染，这可能导致永久性听力损失。 700,000, or 7%, will suffer from an ear infection, which can lead to permanent hearing loss.
600,000名儿童（或6％）患有肺炎 - 这是麻疹最危险的影响。 600,000 kids, or 6%, will suffer from pneumonia -- the most dangerous effect of measles.
仅此一项就会导致12,000名儿童死亡。 It, alone, will kill 12,000 children.
多达10,000名儿童，或0.1％，将得到脑炎。 Up to 10,000 children, or 0.1%, will get encephalitis.
2,500名儿童，即0.025％，将与SSPE签订合同， 2,500 kids, or 0.025%, will contract SSPE,
麻疹病毒在大脑中徘徊的疾病 a disease where the measles virus lingers in their brain
并在几年后杀死他们。 and kills them a few years later.
合在一起， Taken together,
大约250万儿童将受到麻疹的严重影响。 around 2.5 million children will suffer from somewhat serious effects from measles.
而且，约有20,000名儿童将被麻疹杀死。 And, about 20,000 children will be killed by measles.
它并不止于此。 It doesn't stop here though.
击败麻疹的孩子的免疫系统严重受损 The kids who beat measles are left with a severely damaged immune system
这需要很多时间来重新生成。 that needs a lot of time to regenerate.
是时候让其他疾病做进一步的伤害了。 Time for other diseases to do further damage.
除此之外，几乎可以保证 Aside from that, what's almost guaranteed
是你的孩子将在两周内度过一段非常糟糕的时间。 is that your kids will have a really bad time for about two weeks.
好的，但疫苗怎么样？ Okay, but what about vaccines?
看待这些风险也是公平的。 It's only fair to look at these risks, too.
那么，让我们重复我们的思想实验。 So, let's repeat our thought experiment.
但是，这一次，我们为1000万MMR儿童接种了疫苗。 But, this time, we vaccinate ten million children with MMR.
这里理论上会发生什么？ What would theoretically happen here?
接种疫苗后， After being vaccinated,
我们的1000万孩子中，大约有10％的孩子发烧。 of our 10 million kids, around ten percent get a fever.
500,000或5％会出现轻度皮疹。 500,000, or 5%, will get a mild rash.
高达100，或0.001％， Up to 100, or 0.001%,
可能有严重的过敏反应，必须接受治疗。 might have a serious allergic reaction and will have to be treated.
最多十个男孩，或0.0001％， Up to ten boys, or 0.0001%,
可能会发生生殖器炎症。 might get inflammation of the genitalia.
最多十个孩子，或0.0001％， And up to ten kids in total, or 0.0001%,
可能会产生最严重的副作用：脑炎。 might get the most serious side effect: encephalitis.
因此，我们为一千万儿童接种了疫苗。 So, we vaccinated ten million kids.
总共有大约一百二十个副作用有点严重。 In total, around one hundred and twenty had side effects that were somewhat serious.
由于发达地区的良好医疗，几乎所有地区都可以。 Thanks to good medical treatment in developed regions, almost all of them will be fine.
自闭症怎么样？ What about autism?
自闭症和疫苗的联系源于一个来源 The connection of autism and vaccines stems from one source
这无数次都被证实了。 that has been disproven countless times.
我们将链接到说明中的进一步阅读和视频。 We'll link to further reading and videos in the description.
但是，在2019年，公平地说疫苗不会导致自闭症。 But, in 2019, it's fair to say that vaccines do not cause autism.
好吧，但死亡怎么样？ All right, but what about deaths?
很难说我们1000万接种疫苗的孩子中的一个人是否会死亡。 It's really hard to say if even a single one of our 10 million vaccinated kids would die.
我们确实很努力，并与很多不同的专家交谈过。 We really did look hard and talked to a lot of different experts.
如果我们忽略自我报告， If we ignore self-reporting,
我们只能提出一些记录在案的案例 we could only come up with a tiny handful of documented cases
自1971年以来，所有接种过MMR疫苗的数亿儿童都是如此。 for all the hundreds of millions of children who received the MMR vaccine since 1971.
对于您的孩子来说，麻疹的危险性要高出数千倍 Measles are many, many thousands of times more dangerous for your child
甚至是疫苗副作用的绝对最坏情况。 than even the absolute worst case of vaccine side effects.
你必须用巨大的放大镜寻找致命的疫苗副作用 You have to search for lethal vaccine side effects with a huge magnifying glass
即使在那时，也很难找到确认的病例。 and, even then, it's very hard to find confirmed cases.
然而，麻疹死亡是真实的，很容易找到。 While, deaths from measles are real and easy to find.
仅在2017年，全世界就有110,000人死于麻疹。 In 2017 alone, 110,000 people died from measles worldwide.
据统计，今天有300名儿童将死于麻疹。 Statistically, today, 300 children will die of measles.
一个自视频开始以来。 One since this video started.
您可以将疫苗与安全带进行比较。 You can compare vaccines to seatbelts.
是否有人因安全带被人杀死而发生奇怪的怪异事故？ Are there weird freak accidents where someone gets killed by their seatbelt?
嗯，是。 Well, yes.
但是，你个人认为不给你的孩子系安全带更安全吗？ But, do you personally think it's safer to not put a seatbelt on your kid?
等一等！ Wait a second!
如果你的孩子真的过敏怎么办？ What if your kid is actually allergic?
如果我们所说的一切都不适用于您的具体情况怎么办？ What if none of the things we've said applies to your specific situation?
在这种情况下，您需要成为所有人中最好的疫苗接种促进者。 In this case, you need to become the greatest vaccination promoter of all.
因为如果你的孩子不能接种疫苗，只有集体才能保护他们。 Because if your children can't be vaccinated, only the collective can protect them.
这被称为群体免疫力， This is called herd immunity,
这是唯一可以保护你未接种疫苗的孩子的东西。 and it's the only thing that can protect your unvaccinated child.
群体免疫力意味着足够的人免疫疾病， Herd immunity means that enough people are immune to a disease,
它不能传播，并在它到达受害者之前死亡。 that it can't spread, and dies before it reaches its victims.
但要仅为麻疹做到这一点， But to accomplish this for measles alone,
您周围95％的人需要接种疫苗。 95% of the people around you need to be vaccinated.
结论 Conclusion
关于疫苗的争论的问题在于它不是在公平的竞争环境中进行的。 The problem with the debate about vaccines is that it's not fought on a level playing field.
虽然亲疫苗方面与研究和统计数据有争议， While the pro-vaccine side argues with studies and statistics,
反对他们的论点通常是直觉的混合物， the arguments against them are usually a wild mixture of gut feeling,
轶事和错误的信息。 anecdotes, and misinformation.
感情往往不受事实的影响。 And feelings are often immune to facts.
我们不会通过尖叫来说服任何人。 We'll not convince anybody by screaming at them.
但我们无法躲避反疫苗阴谋所做的事实。 But we can't hide from the reality of what anti-vaccine conspiracies do.
他们杀死太小的婴儿不能接种疫苗。 They kill babies too young to be vaccinated.
他们杀死了不幸的健康儿童。 They kill healthy children that are just unlucky.
它们使严重疾病从濒临灭绝的边缘带回来。 They bring serious diseases back from the verge of extinction.
而且，疫苗最大的副作用是死亡儿童减少。 And, the biggest side effect of vaccines is fewer dead children.
疫苗是我们拥有的最强大的工具之一 Vaccines are one of the most powerful tools we have
消灭我们大多数人已经忘记的怪物。 to eradicate the monsters that most of us have already forgotten.
我们不要把野兽带回来！ Let's not bring the beasts back!
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