更新：2004年5月至10月美国及全球流感活动情况

Update: influenza activity--United States and worldwide, May-October 2004.

出版信息

MMWR Morb Mortal Wkly Rep. 2004 Oct 29;53(42):993-5.

Abstract

May-October 2004, influenza A (H3N2) viruses circulated worldwide and were associated with mild-to-moderate levels of disease activity. Influenza A (H1N1) and B viruses were reported less frequently. In North America, isolates of influenza A (H3N2), A (H1N1), and B were identified sporadically. This report summarizes influenza activity in the United States and worldwide during May-October 2004. Influenza activity in North America typically peaks during December-March.

摘要

2004年5月至10月，甲型（H3N2）流感病毒在全球传播，并伴有轻度至中度的疾病活动水平。甲型（H1N1）和乙型流感病毒的报告较少。在北美，甲型（H3N2）、甲型（H1N1）和乙型流感病毒的分离株为散发病例。本报告总结了2004年5月至10月美国及全球的流感活动情况。北美的流感活动通常在12月至次年3月达到高峰。