This is the VOA Special English Agriculture Report. Exotic Newcastle disease is a bird virus found in many parts of the world. Many kinds of birds carry it. But it especially affects chickens and a few others. It spreads very fast and there is no tr

发表于:2018-12-01 / 阅读(128) / 评论(0) 分类 VOA慢速英语2007年(十二)月

Bacterium Targets Untreated HIV-Positive People Researchers are warning of an emerging form of intestinal disease in sub-Saharan Africa. Its targeting mostly HIV-infected people, who are not on treatment. The disease kills up to 45 percent of those i

发表于:2018-12-08 / 阅读(42) / 评论(0) 分类 VOA标准英语2012年(九月)

This is the VOA Special English Health Report. There are low-cost vaccines, taken by mouth, that can protect against cholera. The vaccine is commonly provided to international travelers, but not to communities that suffer cholera epidemics. There ar

发表于:2019-01-11 / 阅读(128) / 评论(0) 分类 VOA慢速英语2007年(十二)月

E coli: Good Bacteria Gone Bad As a major outbreak of a highly toxic strain of E. coli bacteria continues to sicken residents of Europe, medical experts are racing to find the source. E. coli doesn't usually cause any trouble, says University of Minn

发表于:2019-01-14 / 阅读(76) / 评论(0) 分类 VOA标准英语2011年(六月)

DEVELOPMENT REPORT - Studies Say New Rotavirus Vaccines Are Safe and EffectiveBy Jill Moss Broadcast: Monday, January 16, 2006 I'm Steve Ember with the VOA Special English Development Report. Studies

发表于:2019-01-16 / 阅读(59) / 评论(0) 分类 2006年慢速英语(一)月

Celiac disease is an inherited disease, 乳糜泻是遗传性疾病, in which eating foods with gluten leads to inflammation and damage of the lining of the small intestine. 患者在进食麩质食物时,会出现发炎,并损害小肠绒毛。

发表于:2019-01-17 / 阅读(33) / 评论(0) 分类 TED演讲教育篇