MMWR Morb Mortal Wkly Rep. 2006 Apr 7;55(13):368-70.
During March 19-25, 2006, the number of states reporting widespread influenza activity decreased to 16. Sixteen states reported regional activity, 13 reported local activity, and five reported sporadic activity.
在2006年3月19日至25日期间，报告有广泛流感活动的州数量降至16个。16个州报告有区域性活动，13个州报告有局部性活动，5个州报告有散发性活动。
