共用题干 Better Control of TB Seen If a Faster Cure Is FoundThe World Health Organization estimates that about one-third of all people are infected with bacteria that cause tuberculosis(结核病).Most times , the infection remains inactive(不活跃的).But each year about eight million people develop active cases of TB,usually in their lungs. Two million people die of it.The disease has increased with the spread of AIDS and drug-resist-ant forms of tuberculosis.Current treatments take at least six months.Patients have to take a combination of several antibiotic(抗生素)drugs daily. But many people stop as soon as they feel better. Doing that can lead to an infection(传染病)that resists treatment. Public health experts agree that a faster-act-ing cure for tuberculosis would be more effective.Now a study estimates just how effective 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 cured.It would also mean fe- wer infectious patients who can pass on their infection to others.The researchers developed a mathematical(数学的)model to examine the effects of a two-month treatment plan.They tested 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 prevent about twenty-five percent of TB deaths.The model shows that these reductions 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 World Health Organization developed the DOTS program in nineteen ninety.DOTS(短期直接观察治疗)is Directly Observed Treatment, Short-course. Health workers watch tubercu- losis patients take their daily pills to make sure they continue treatment.Earlier this year,an international partnership of organizations announced a plan to expand the DOTS program.The ten-year plan also aims to finance research into new TB drugs.The four most common drugs used now are more than forty years old.The Global Alliance for TB Drug De- velopment(全球结核病药物开发联盟)says its long-term goal is a treatment that could work in as few as ten doses. Each year,about______people die of TB,according to the World Health Organization.
A.One-third of all B.Eight million C.Two million D.One million正确答案C
