美国疾病控制与预防中心22日公布,到目前为止,全美共录得1118宗感染西尼罗病毒的病例,这一数字是往年平均数的3倍多,其中已有41人死亡。据官员们介绍,在过去几周,该病毒的感染病例急剧上升,数字相当惊人。而去年这个时候全美只录得25例感染报告。目前全美绝大部 The U.S. Centers for Disease Control and Prevention announced on the 22nd that so far a total of 1118 cases of West Nile virus infection have been reported in the United States. This figure is more than three times the previous year’s average, of which 41 people have already died. According to officials, the number of cases of the virus has risen sharply in the past few weeks, which is quite alarming. This time last year, the United States recorded only 25 cases of infection report. At present, most of the United States