The World Health Organization says effective vaccines against killer diseases are averting between 2 to 3 million deaths every year. Lisa Schlein reports. An increasing number of people in all age groups are being immunized against preventable diseases. WHO director of Immunization, Vaccines and Biologicals Jean-Marie Okwo-Bele says polio is on the verge of eradication. He says measles in Africa has gone down dramatically and the disease is being eliminated in the Americas and in the Pacific region including China. _______________________ Lisa Schlein, for VOA News, Geneva.世界卫生组织称对抗致命性疾病的有效疫苗每年挽救2百万到3百万人的性命.利萨`斯克林报道.越来越多的人,不论老少,通过接种疫苗来预防疾病.世卫组织免疫、疫苗和生物制品司司长琼`玛丽`奥克沃`贝里称小儿麻痹症即将灭绝,在非洲麻疹患者人数急剧下降,而在美洲和包括中国在内的太平洋地区,该病已被消灭,_______________________利萨`斯克林,自日内瓦带来美国之音新闻.
