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(单词翻译:双击或拖选)
There are some “good” things about the disease of tuberculosis1 (TB). One is that it can be cured. Another is that TB is not spread by shaking hands, sharing dishes, or sharing clothing. Another is that people usually catch it only from others that they are with constantly—such as family, friends, or coworkers. The occasional cough or sneeze from a nearby stranger doesn't transmit TB.
Many people think TB is rare, like bubonic plague or smallpox2. Yet TB still occurs worldwide, killing3 almost 2 million people a year! Most victims are young or elderly, and live in developing countries. Yet even in developed countries, TB is a killer4. In the US, TB killed 650 people in 2005.
Caused by bacteria, most forms of TB can be treated with antibiotics5. The antibiotics must be taken for weeks, however, before the victim completely recovers. Ignoring doctor's orders, some victims stop taking their antibiotics as soon as they start feeling better; they risk catching6 a stronger version of TB in the future.
TB usually attacks the lungs. Symptoms vary. But common symptoms include fatigue7, lots of coughing, loss of appetite, chest pain, and spitting up blood. A simple skin test, followed if necessary by a chest x-ray, will determine if active TB exists. If so, a doctor will prescribe antibiotics.
More than a billion people have inactive TB. It becomes active and life-threatening only when a person's immune system weakens because of aging or a serious illness.
1 tuberculosis | |
n.结核病,肺结核 | |
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2 smallpox | |
n.天花 | |
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3 killing | |
n.巨额利润;突然赚大钱,发大财 | |
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4 killer | |
n.杀人者,杀人犯,杀手,屠杀者 | |
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5 antibiotics | |
n.(用作复数)抗生素;(用作单数)抗生物质的研究;抗生素,抗菌素( antibiotic的名词复数 ) | |
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6 catching | |
adj.易传染的,有魅力的,迷人的,接住 | |
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7 fatigue | |
n.疲劳,劳累 | |
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