醫(yī)學(xué)英語(yǔ)閱讀

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　　醫(yī)學(xué)英語(yǔ)閱讀：致命的軍團(tuán)桿菌

　　Legionnaires' disease is a serious and sometimes fatal form of pneumonia. Legionnaires' disease is caused by infection with Legionella bacteria which are found naturally in the environment and thrive in warm water and warm damp places. Man-made water systems sometimes provide environments that let Legionella bacteria increase to large numbers. These man-made systems include showers, spa pools, fountains, and air conditioning cooling towers. People usually get Legionnaires' disease by breathing in mists that come from a water source contaminated with Legionella bacteria.

　　An estimated 8,000 to 18,000 people get Legionnaires' disease in the United States each year. Some people can be infected with Legionella bacteria and have mild symptoms or no illness at all. Patients with Legionnaires' disease usually have fever, chills, and a cough, which may be dry or may produce sputum. Some patients also have muscle aches, headache, tiredness, loss of appetite, and, occasionally, diarrhea. From the time of infection with Legionella bacteria, it takes 2-10 days for symptoms to appear. In most cases, symptoms begin after 5-6 days. Legionnaires' disease is treated with antibiotics, such as erythromycin. The earlier that treatment is begun, the better the outcome.

　　The first known outbreak of Legionnaires' disease was in Philadelphia, USA, in 1976. A total of 221 people contracted the disease and 34 died. Most of those that died were Legionnaires and that's how the disease got its name. The second largest outbreak was at the Stafford hospital in England in 1985; a total of 101 people contracted the disease and 28 died.

　　軍團(tuán)病是一種非常嚴(yán)重的、有時(shí)可以致命的肺炎。軍團(tuán)病是由軍團(tuán)桿菌引起，這種細(xì)菌產(chǎn)生在自然環(huán)境中，在溫水里及潮熱的地方蔓延。人工供水系統(tǒng)有時(shí)也能為軍團(tuán)桿菌的大量繁殖提供生存環(huán)境。這些系統(tǒng)包括淋浴器、礦泉池、噴泉以及空調(diào)設(shè)備的冷卻水塔。人們通常是由于呼吸了被軍團(tuán)桿菌污染的水源散發(fā)的水霧而傳染上軍團(tuán)病的。

　　據(jù)估計(jì)，在美國(guó)每年都有國(guó)每年都有8000~18000人感染上軍團(tuán)病。有些軍團(tuán)病感染者所表現(xiàn)出來(lái)的癥狀比較溫和，甚至根本就沒有得病的跡象。軍團(tuán)病患者通常有發(fā)燒、畏寒及干咳或咳痰等表現(xiàn)。部分患者還有肌肉疼痛、頭痛、疲勞、食欲不振及偶爾腹瀉等癥狀。這種病的潛伏期約為的潛天。許多病例表明，出現(xiàn)癥狀需要狀需要5~6天的時(shí)間。軍團(tuán)病可以用紅霉素等抗生素進(jìn)行治療，越早治療效果越好。

　　軍團(tuán)病已知的首次爆發(fā)是在發(fā)是1976年美國(guó)費(fèi)城，221人感染疾病，其中死亡34人。由于大多的死者都是軍團(tuán)成員，因此稱為軍團(tuán)病。該病的第二次大爆發(fā)是1985年在英國(guó)的斯塔福德醫(yī)院。這次101個(gè)被感染者中有28人死亡。

　　醫(yī)學(xué)英語(yǔ)閱讀：循證醫(yī)學(xué)

　　Evidence based medicine is the conscientious, explicit, and judicious use of current best evidence in making decisions about the care of individual patients. The practice of evidence based medicine means integrating individual clinical expertise with the best available external clinical evidence from systematic research, By individual clinical expertise we mean the proficiency and judgment that individual clinicians acquire through clinical experience and clinical practice. By best available external clinical evidence we mean clinically relevant research, often from the basic sciences of medicine, but especially from patient centered clinical research into the accuracy and precision of diagnostic tests (including the clinical examination), the power of prognostic markers, and the efficacy and safety of therapeutic, rehabilitative, and preventive regimens, External clinical evidence both invalidates previously accepted diagnostic tests and treatments and replaces them with new ones that are more powerful, more accurate, more efficacious, and safer.

　　循證醫(yī)學(xué)是一種明確、謹(jǐn)慎、合理運(yùn)用最佳依據(jù)以決定個(gè)體患者的醫(yī)學(xué)方法。循證醫(yī)學(xué)實(shí)踐意味著綜合個(gè)人臨床專業(yè)知識(shí)與系統(tǒng)研究中可得的最佳外部臨床依據(jù)。所謂個(gè)人臨床專長(zhǎng)是指臨床醫(yī)師本人從臨床經(jīng)驗(yàn)與臨床實(shí)踐中所獲得的熟練程度與判斷力。而最佳外部臨床依據(jù)是指臨床相關(guān)研究，一般來(lái)自基礎(chǔ)醫(yī)學(xué)研究，尤其是針對(duì)患者的臨床研究轉(zhuǎn)化為準(zhǔn)確的診斷試驗(yàn)(包括臨床檢查)、預(yù)后標(biāo)志效應(yīng)、治療、康復(fù)及預(yù)防療法的效果與安全性。外部臨床依據(jù)旨在廢除過(guò)去既定的診斷試驗(yàn)與療法，并代之以更有力、更準(zhǔn)確、更有效、更安全的新方法。