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Rabies is a problem in many countries, but countries in Asia, Africa and South America are the most affected.
狂犬病在许多国家都是一个问题，但亚洲、非洲和南美洲的国家受到的影响最大。
And world-wide, only a few countries are free of the disease.
在世界范围内，只有少数国家没有这种疾病。
The World Health Organization, the WHO, says that about 50,000 people die from rabies every year.
世界卫生组织表示，每年约有5万人死于狂犬病。
And 30 to 50 percent of these are children.
其中30%到50%是儿童。
Almost all cases of rabies in humans come from animal bites.
几乎所有人类狂犬病病例的病因都是动物咬伤。
This can only happen if the animal has rabies.
只有在咬人的动物患有狂犬病的情况下，被咬的人才可能会感染狂犬病。
Animals infected with rabies do not feel fear.
感染狂犬病的动物不会感到恐惧。
They become very violent.
它们会变得非常暴力。
They attack other animals, spreading the disease.
它们攻击其他动物，传播疾病。
They also try to bite and attack people.
它们还试图咬人、攻击人。
This is how rabies spreads - through the bite and saliva of an animal.
这就是狂犬病的传播方式——通过动物的咬伤和唾液传播。
Dogs are the biggest risk in most countries.
在大多数国家，狗是最大的风险。
Rabies is a serious disease.
狂犬病是一种严重的疾病。
But it can be prevented.
但这是可以预防的。
Medical science is a big help.
医学提供了很大的帮助。
Vaccines are the most important step in preventing rabies.
疫苗是预防狂犬病最重要的一步。
They protect people from the disease.
它们保护人们免受疾病的侵袭。
People can get the rabies vaccine before or after an attack.
人们可以在被咬之前或之后接种狂犬病疫苗。
If a person gets the vaccine before the attack, the rabies will not develop.
如果人在被咬前接种了疫苗，狂犬病就不会发展。
But after an attack it is important to get the vaccine quickly.
但在被咬后，迅速接种疫苗是很重要的。
The signs of rabies do not appear immediately.
狂犬病的症状不会立即出现。
A person may think he has avoided the rabies virus.
人们可能会认为他没有感染狂犬病病毒。
But signs of the disease will usually appear within 20 to 60 days.
但这种疾病的症状通常会在20至60天内出现。
After an attack, the vaccine will treat and cure rabies.
被咬后，疫苗将治疗和治愈狂犬病。
It is important to begin the treatment within two days of a possible infection.
在可能感染狂犬病后的两天内治疗是很重要的。
After symptoms develop, it is too late for treatment.
等症状出现后，治疗为时已晚。
