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  3. Better Control of TB Seen If a Faster Cure Is Found The World Health Organization estimates that about one-third of all people a

Better Control of TB Seen If a Faster Cure Is Found The World Health Organization estimates that about one-third of all people a

admin2009-06-15  31
问题                     Better Control of TB Seen If a Faster Cure Is Found
The World Health Organization estimates that about one-third of all people are infected with bacteria that cause tuberculosis. Most times, the infection remains inactive. But each year about eight million people develop active cases of TB, usually in their(51). Two million people die(52)it. The disease has(53)with the spread of AIDS and drug-resistant forms of tuberculosis.
Current treatments take at least six months. Patients have to(54)a combination of several antibiotic drugs daily. But many people stop(55)they feel better. Doing that can(56)to an infection that resists treatment. Public health experts agree that a faster-acting cure for tuberculosis would be more effective. Now a study estimates just how(57)it might be. A professor of international health at Harvard University led the study. Joshua Salomon says a shorter treatment program would likely mean not just more patients(58). It would also mean(59)infectious patients who can pass on their infection to others.
The researchers developed a mathematical model to examine the effects of a two-month treatment plan. They(60)the model with current TB conditions in Southeast Asia. The scientists found that a two-month treatment could prevent about twenty percent of new cases. And it might(61)about twenty-five percent of TB deaths. The model shows that these(62)would take place between two thousand twelve and two thousand thirty. That is, if a faster cure is developed and in wide use by two thousand twelve.
The Word Health Organization(63)the DOTS program in nineteen ninety. DOTS is Directly Observed Treatment, Short-course. Health workers watch tuberculosis patients take their daily pills to make(64)they continue treatment.
Earlier this year, an international partnership of organizations announced a plan m expand the DOTS program. The ten-year plan also aims to finance research(65)new TB drugs. The four most common drugs used now are more than forty years old. The Global Alliance for TB Drug Development says its long-term goal is a treatment that could work in as few as ten doses.
选项 A、increased
B、decreased
C、changed
D、disappeared
答案A
解析 本句后半部说到艾滋病的传播和抗药型结核病的出现，那么根据推理，结核病自然应该增加，而不可能“减少”或“消失”。至于“变化”，不应该是结核病本身发生变化，而应该是发病率发生变化。
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