MMWR Morb Mortal Wkly Rep. 2010 Oct 8;59(39):1270-3.
From June 13 to September 25, 2010, the United States experienced low levels of influenza activity. During this period, typical seasonal patterns of influenza activity occurred in the Southern Hemisphere; in addition, influenza activity was observed in the tropical regions, with a mix of 2009 influenza A (H1N1), influenza A (H3N2), and influenza B viruses cocirculating. This report summarizes influenza activity in the United States and worldwide since the update published on July 30, 2010.
从 2010 年 6 月 13 日至 9 月 25 日，美国的流感活动水平较低。在此期间，南半球出现了典型的季节性流感活动模式；此外，在热带地区也观察到了流感活动，同时存在 2009 年甲型 H1N1 流感、甲型 H3N2 流感和乙型流感病毒的混合传播。本报告总结了自 2010 年 7 月 30 日发布上次更新以来美国和全球的流感活动情况。
