The protection the BCG vaccine provides against tuberculosis is notoriously poor. But it could hold the key to a vaccine against asthma, which now affects one in seven children in the West. Klaus Joseph Erb's team at the University of Wuerzburg in Germany gave mice nasal sprays containing the bacterium used in the BCG vaccine. When they later exposed the mice to the egg-white protein ovalbumin, which usually gives them asthma-like symptoms, their lungs remained healthy.
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机译：众所周知，卡介苗疫苗对肺结核的保护作用很差。但这可能是抗哮喘疫苗的关键，目前这种疫苗已经影响了西方七分之一的儿童。德国维尔茨堡大学的克劳斯·约瑟夫·埃布（Klaus Joseph Erb）的研究小组给小鼠鼻腔喷洒了含有BCG疫苗所用细菌的喷雾剂。当他们后来使小鼠暴露于蛋清蛋白卵清蛋白（通常会给他们带来哮喘样症状）时，它们的肺部仍然健康。
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