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The World Bank, the United Nations and the London School of Hygiene and Tropical Medicine did a study to urge hand-washing around the world. They found that one million lives could be saved each year if people washed their hands with soap often. They said that programs to increase hand-washing with soap could be among the most effective ways to reduce infectious disease.
Doctors say, many diseases can be prevented from spreading by hand-washing. These include pinworms(寄生虫), influenza(流感), the common cold, hepatitis(肝炎) A, meningitis(脑 膜炎) and infectious diarrhea(腹泻).
Hand-washing destroys germs from other people, animals or objects a person has touched. When people get bacteria on their hands, nose or mouth, they can infect themselves by touching their eyes, nose or mouth. Then these people can infect other people.
The experts say the easiest way to catch a cold is to touch your nose or eyes after someone nearby has sneezed or coughed. Another way to become sick is to eat food prepared by someone whose hands were not clean.
The experts say that hand-washing is especially important before and after preparing food, before eating and after using the toilet. People should wash their hands after handling animals or animal waste, and after cleaning a baby. The experts say it is also a good idea to wash your hands after handling money and after sneezing or coughing. And it is important to wash your hands often when someone in your home is sick. The experts say the most effective way to wash your hands is to rub them together while using soap and warm water. They say you do not have to use special antibacterial  soap. Be sure to rub all areas of the hands for about ten to fifteen seconds.  The rubbing action helps remove germs. Then rinse(冲洗) the hands with water and dry them.
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	Hand-washing could be among the most effective ways to reduce infectious diseases.
Many can be prevented.	Pinworms, influenza, the common cold, hepatitis A, meningitis and infectious diarrhea.
to   do hand-washing	●Before and after preparing      . ●Before eating and after using the   . ●After cleaning a baby. ●After handling money and after sneezing or    coughing. ●When there is a         in your home.
to   do hand-washing	●Rubbing them together while using       and warm water. ●Rubbing all areas of the hands for about 10-15 seconds and rinsing the hands with water and dry them.
How hand-washing works	Hand-washing     up  germs  from  other  people,  animals  or  objects  a person has touched.