Polio Vaccine Graph - 搜索图片

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BBC
What are vaccines, how do they work and why are people scepti…
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BBC
The history of the NHS in charts - BBC News
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foxnews.com
Nigerian helicopters rush polio vaccines to dangerous area | Fox News
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edition.cnn.com
Why is it taking so long to rid the world of polio? - CNN

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ProCon.org
Polio - Vaccines - ProCon.org
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The Washington Post
Tainted Cutter polio vaccine killed and paralyzed children in 1955 ...
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gavi.org
12,000 kilometres towards polio eradication’s last mile
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Our World In Data
Polio - Our World in Data

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statista.com
Chart: The Long Road to Global Wild Polio E…
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Our World In Data
Polio - Our World in Data
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hpsc.ie
Polio - Health Protection Surveillance Centre
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aai.org
The American Association of Immunologists - Polio: Part III—The Vaccine

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clinicaltrialsarena.com
Polio outbreak in New York state due to low vaccination coverage

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