实际上，加菲尔德总统似乎是死于医疗护理，他在被刺客枪击后死于由医生的非无菌治疗技术引起的致命感染。
Medical attention seems to have actually killed President Garfield, who succumbed to a fatal infection introduced by his doctors' unsterile treatment techniques after he was shot by an assassin.
注射毒品者可以采取预防措施，每次注射都应使用无菌的包括针头和注射器在内的注射设备，以防感染艾滋病毒。
People who inject drugs can take precautions against becoming infected with HIV by using sterile injecting equipment, including needles and syringes, for each injection.
由于受感染的风险很大， 无菌注射针的使用受到了重视。
The high risk of infection puts a premium on the use of sterile needles.
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