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43.Statistics There were two widely divergent influences on the early development of statistical methods. Statistics had a mother who was dedicated to keeping orderly records of government units (states and statistics come from the same Latin root s

美国科学60秒 SSS 2012-12-25

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豆知识 2010-06-27&07-03 维基百科

You've probably seen encyclopedias. Whether you're settling an argument or researching a school project, these books can hold the answers. These days though, the world moves so fast, it's hard for books that were written months or years ago to keep u

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Study Shows PFCs Can Reduce Vaccine Effectiveness When children are vaccinated their immune systems produce antibodies that protect them from debilitating and potentially deadly childhood infections, such as polio, measles, diphtheria and tetanus. Th

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If you could take a vaccine that would protect you against cancer, wouldn't you take it? Well, for cervical cancer, there is a vaccine. It protects against a virus called HPV, which can lead to cancer of the cervix. But a new study reports that many

VOA常速英语2007年-Private Partnership Funds Vaccinations for Mill

By Scott Bobb Johannesburg 28 November 2007 A pioneering partnership of public and private donors in the past year has funded vaccinations for several hundred million children in the world's poorest countries, saving countless lives. VOA's Scott Bobb

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Autism spectrum disorder is a complex neurological disorder that affects a person's ability to communicate and interact with others. For decades some parents, researchers and doctors have debated a possible link between autism and vaccines that conta

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If you could take a vaccine that would protect you against cancer, wouldn't you take it? Well, for cervical cancer, there is a vaccine. It protects against a virus called HPV, which can lead to cancer of the cervix. But a new study reports that many

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By Vidushi Sinha Washington 15 November 2009 The Centers for Disease Control and Prevention says that counting related illnesses the number of deaths from the H1N1 virus is about four times earlier estimates. Federal health officials now say nearly

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By Jessica Berman Washington 18 January 2006 Noma, a disfiguring mouth disease, can be found in many extremely poor countries, but the condition is especially common in sub-Saharan Africa. Noma comes

VOA常速英语2007年-Oral Cholera Vaccine Found Highly Effective

By Jessica Berman Washington 27 November 2007 Endemic cholera, a potentially fatal diarrheal disease found in the world's poorest countries, could be effectively controlled by orally vaccinating half of the affected populations once every two years f

Polio Vaccination Efforts in India Focus on Convincing Paren

Steve Baragona Polio is on the ropes. A $3 billion global campaign has driven the crippling and sometimes-fatal disease to just six source countries. Experts say the campaign has the potential to win

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Hungarian health authorities have launched a national campaign warning Hungary's Santa Claus to avoid kissing children and shaking their hands to prevent spreading the swine flu virus. They also want him to get vaccinated against the illness. About 1

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A child being vaccinated against polio A new effort is underway to vaccinate people in the four countries where polio outbreaks still occur. If this effort is successful, polio could be eradicated worldwide. Derek Henkle met the 88-year-old Australia

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Measles was eliminated in the US 19 years ago. The only cases now are those that are imported from other countries. Thats happening in the US with greater frequency. Measles is incredibly contagious. Once it gets around the community, its very diffic