MMWR Morb Mortal Wkly Rep. 1998 Nov 20;47(45):984, 991.
In collaboration with the World Health Organization (WHO), its collaborating laboratories, and state and local health departments, CDC conducts surveillance to monitor influenza activity and to detect antigenic changes in the circulating strains of influenza viruses. This report summarizes influenza activity from October 4 through November 7, 1998; during this period, overall influenza activity in the United States was low. However, outbreaks of influenza A occurred in New York during October-November.
美国疾病控制与预防中心（CDC）与世界卫生组织（WHO）、其合作实验室以及州和地方卫生部门合作，开展监测工作，以监测流感活动并检测流感病毒流行毒株的抗原变化。本报告总结了1998年10月4日至11月7日期间的流感活动情况；在此期间，美国总体流感活动水平较低。然而，10月至11月期间纽约发生了甲型流感疫情。
