Cattle Plague Declared Eradicated Scientists are declaring victory over a deadly animal disease that cattle herders around the world have dreaded for millennia. Rinderpest becomes the second disease in all of human history to be successfully eradicat

发表于:2018-12-08 / 阅读(61) / 评论(0) 分类 VOA标准英语2011年(六月)

By Lisa Schlein The UN Children's Fund, UNICEF, says Iodine Deficiency Disorders, which cause mental retardation, are a huge problem in Europe and Central Asia. UNICEF says this disorder can be solved

发表于:2019-01-03 / 阅读(50) / 评论(0) 分类 VOA2004(下)--健康科技

LULU GARCIA-NAVARRO, HOST: In central Montana, drones are dropping peanut butter pellets on prairie dog colonies. As Yellowstone Public Radio's Nate Hegyi explains, it's part of an effort by biologists to save North America's most endangered mammal.

发表于:2019-01-16 / 阅读(38) / 评论(0) 分类 2017年NPR美国国家公共电台12月

A recent headline on the Web site theverge.com got a lot of attention on social media. Because each new phrase seemed to take the message in an unexpected direction. The headline read: U.S. government plans to use drones to fire vaccine-laced MMs nea

发表于:2019-01-20 / 阅读(30) / 评论(0) 分类 2016年Scientific American(八)月

HEALTH REPORT - Plague Outbreak in Eastern Congo By Cynthia Kirk Broadcast: Wednesday, March 02, 2005 I'm Gwen Outen the VOA Special English Health Report. Plague is an ancient disease that can be tre

发表于:2019-01-30 / 阅读(136) / 评论(0) 分类 健康与经济

By Phuong Tran Nouadhibou, Mauritania 12 August 2007 According to U.N. estimates, young people account for more than 60-percent of the African population. The continent also has some of the world's highest unemployment rates, forcing thousands on dea

发表于:2019-02-14 / 阅读(117) / 评论(0) 分类 2007年VOA标准英语(八月)